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Le but de la présente thèse est d’étudier les témoignages sur la doctrine de l’« Hadès ouranien » du IVe siècle avant J.-C. au VIe siècle après J.-C. et de dégager les éléments essentiels. L’« Hadès ouranien », traduction de l’expression ὁ ἐν τῷ οὐρανῷ ᾍδης, est un thème de pensée qui caractérise tout un millénaire de la philosophie et de la religion de l’Antiquité païenne. En traitant ce thème historico-religieux, on se veut le plus complet possible mais tout en étant prudent envers nos sources, qui sont fragmentaires et qui proviennent, pour la majorité, de la tradition platonico-péripatéticienne et de ses commentateurs. Aussi, s’efforce-t-on de montrer que l’Hadès ouranien est un lieu de purification pour l’âme et donc, un purgatoire. D’une manière générale, notre recherche est la première entièrement consacrée au sujet de l’Hadès ouranien et à son évolution durant l’Antiquité. Pour ce faire, sur la base d’une approche contextualisée, nous croyons devoir distinguer en réalité trois lieux où l’Hadès céleste a été situé : il y a d’un côté l’emplacement dans la Voie Lactée (Héraclide du Pont) ; il y a aussi un effort, assez divers en ses formes, de situer ce Purgatoire entre la Lune et la terre ou aux alentours de la Lune (les académiciens, les stoïciens, Cicéron, Virgile, Plutarque, les écrits hermétiques) ; finalement, Numénius et les néoplatoniciens latins l’ont situé entre la sphère des fixes et la terre. Quant à l’évolution des éléments qui constituent notre thème, la thèse montre que le platonisme et le néoplatonisme ont fourni un milieu propice pour le développement et la propagation dans l’empire gréco-romain des doctrines sur l’Hadès céleste. De plus, ces mouvements ont aidé à la spiritualisation progressive de cet espace purgatoire. Par ailleurs, on établira certaines caractéristiques de notre thème : l’échappée de l’âme hors du corps, l’allégorie physique et la division, ontologique et physique, entre les mondes sublunaire et supralunaire. Dans une première partie, on traitera de la doctrine de l’Hadès ouranien dans l’ancienne Académie platonicienne (Héraclide, Xénocrate, Philippe d’Oponte) et dans le stoïcisme. La deuxième partie est consacrée à l’analyse du Purgatoire chez Plutarque de Chéronée. La doctrine du Purgatoire selon Cicéron et Virgile et chez leurs interprètes néoplatoniciens, ainsi que dans l’hermétisme et le gnosticisme sera traitée dans la troisième partie. Dans la quatrième et dernière partie, on explorera la doctrine du Purgatoire dans le Oracles chaldaïques et dans les écrits de Proclus, particulièrement dans son Commentaire sur la République de Platon.

This thesis analyzes the identity of the tumular monuments designated as “Thracian”, discovered in the territory of present day Bulgaria and dated between the 5th and the 3rd centuries B.C. These monuments, built in ashlar masonry or in unprocessed stones, or a mix of different materials and building techniques, were invariably covered by earthen mounds (called tumuli) which have been used to varied ends by local populations from Antiquity until the present day. More or less detailed studies of these tumular monuments began to appear by the end of the 19th century, while the list of newly discovered structures continues to grow almost exponentially. These publications and discoveries revealed that the sample of known Thracian monuments is characterised by what has been described as a great variety of architectural forms. Overwhelmed by this apparent variety, and in an attempt to explain it, certain researchers have tried to categorise what they have perceived as different types of monuments. Many hypotheses bearing on the function of the latter have also been proposed, although they differ only in the details and can be categorised in two main groups: that arguing for a funerary function of the monuments, and that arguing for a cultual one. Through the years, a heated debate has developed between researchers adhering to one or to the other of these hypotheses – discussion which has been fueled by a constant discovery of new monuments. It is thus surprising to note that neither the hypothesis pertaining to the possible origins of these buildings, nor those attempting to explain their functions, have been based on tangible data – a situation which has resulted in the attribution to the monuments of dubious labels such as “tombs-temples-mausoleums-heroons”. This study provides a comprehensive analysis of the hypotheses pertaining to the functions and, in more general terms, the identity of the Thracian tumular monuments. Its main objective is to explain the problems that these hypotheses have helped to identify, and which, ironically, they have contributed to sustain. It is noted that, despite the lack of precision in the accumulated empirical data relating to the Thracian monuments, most, if not all, researchers working in the field have tended to sink into an excessive positivism. This approach resulted in the implicit or explicit expression of the belief that that the inclusion of the maximum quantity of empirical data in a given analysis will necessarily result in a more complete understanding of a given archaeological context, which can then be inserted in a previously elaborated historical context, so as to paint a clearer picture of the past. Contrary to this tendency, and because of the lack of precise data, the present research focuses first, and foremost, on the publications bearing on the Thracian monuments and proposes a theoretically informed approach of the study of the latter. As described in Part I, this approach is based on current discussions concerning the methods and techniques of analysis in the fields of archaeology, anthropology and history, which have developed around similar circumstances defined by “incomplete” empirical data. The different hypotheses relating to the identity (or function) of the Thracian monuments have been based on specific archaeological elements (mainly of architectural nature), which are described and analysed in the second part of the thesis. The different interpretations of the Thracian monuments are then examined in the light of these analyses. Finally, in Part III of this thesis, the identities attributed to the Thracian monuments are scrutinised on the basis of these analyses and a restitution of the practices related to these monuments is proposed. The approach to the study of the Thracian tumular monuments that has been adopted in this thesis takes into account not only the methodological aspect of the research published by specialists in the field, but also the data on which the different hypotheses relating to these monuments have been based. Particular attention has been drawn to two aspects present in all publications on the subject: the “technical” and “theoretical” vocabulary implicitly or explicitly employed by the authors and the manner in which it affects their perception of the identity of the Thracian monuments. Part III analyzes and underlines the outcome of the different uses of the implicitly or explicitly defined vocabularies employed by thracologists, leading to a comparison between the already published perceptions of the identity of the Thracian monuments and the reconstitution of their function proposed by the author of this thesis. This comparison, as well as the application of the methodology presented in Part I, show that the restitution of the monuments as having had a funerary function is the most parsimonious and better founded in the material record than the cultual function for which some have argued. However, the function of the monuments, as reconstituted by the author of this thesis, differs from most of the “funerary” explanations of the monuments published to date – these tend to venture far beyond the inductions permitted by the available data. Furthermore, this (or any other) restitution of the monuments’ function as funerary does not automatically exclude the possibility of them having been used as cultual places/buildings. Despite the apparent similarity between such an argument with those that have been emitted towards the identification of the Thracian monuments as “temple-tombs”, the author expresses the opinion that the use of such labels is dubious and allows for unfounded critique and ineffectual comparisons between the classical Greek idea of the “temple” and Thracian cultual places. The result of the analysis of the different elements pertaining to the reconstitution of the Thracian monuments’ identity have led to the following conclusions: 1) none of the already published hypotheses arguing for a funerary or for a cultual explanation of the monuments can be validated because of the excessive recourse by their authors to extrapolations lacking proper argumentation; 2) the lack of precise data or, more importantly, of precisely excavated and reconstituted archaeological contexts, prohibits the elaboration of complex hypotheses such as those proposed by specialists in the field; 3) nevertheless, the current state of knowledge regarding the material culture related to the Thracian monuments, and the rigorous application of a methodical analysis of the data show that a reconciliation between the “funerary” and the “cultual” identities of the monuments is possible – however, this fact should not be perceived as a justification of the use of labels similar to “temple-tombs”, nor of the conclusions upon which such labels are based; 4) there is an urgent necessity for a re-definition of the methodological approaches used (or the lack thereof) in the theoretical analyses of the Thracian monuments, as well as those employed on the field, during excavations. A failure to take account of these facts and shortcomings by proceeding with such a re-definition would mean that the identity of the Thracian tumular monuments would remain a matter of opinion and could even be transformed into a matter of dogma. The analyses in this thesis can serve as a base for the re-evaluation of the identity of the Thracian monuments because of their theoretical and methodological soundness. However, such a re-evaluation must also be based on a reconstitution of Thracian ritual practices based on the archaeological record. Paradoxically, despite the impressive amount of publication on the subject of the Thracian tumular monuments as places of cultual practices, a systematic reconstitution of Thracian ritual based on Thracian material culture is yet to be proposed.

Divination in ancient Greece is a well-known phenomenon, often associated with the emblematic character of the delphic Pythia. Inspired by Apollo, this prophetess delivered her oracles by answering the questions asked to her, and in many ancient texts the oracular consultations are summarized in the form of two complementary statements: "a man asked" and "The god has answered". However, the practices that took place in the oracular sanctuaries can’t be reduced to a tête-à-tête. Far from being limited to an inspired agent, the priestly staff of the oracular sanctuaries was numerous and took part in complex rites to enable the world of men to be put in communication with the gods. This work studies the diversity of these agents and the way in which their interactions allowed the divine word to come out. In the first part, we study the agents who participated in the rites of the seven oracular sanctuaries best attested in the Greek world in the Hellenistic and Roman times: the shrine of Zeus in Dodona, Apollo in Didyma, Claros and Delphi, Trophonios in Lebadeia, Amphiaraos in Oropos and Glykon in Abonoteichos. Each sanctuary is the subject of a chapter in which all the agents, human or not, who took part in the ritual are taken into consideration, in order to reconstitute the rites of questioning the god in their specificity. In a second part, this practice is thought more broadly as an institutional process who associated distinct actors at three different levels: the ceremony, the rite and the verbal exchange.

This thesis sheds lights on collaborations and transfer of knowledge between Jewish and Christian scholars in France during the 13th and 14th centuries. We propose a comparative analysis of different exchanges, in three distinct areas: theological, philosophical and astronomical. Taking into account the Latin and Hebrew sources that testify this transmission of knowledge, we propose an in-depth study, dividing in two sections. The first part narrates the evolution of education in the Jewish communities and in Christian society. The second part analyses the context of the Extractiones de Talmut, the transmission of knowledge between Maimonides and Thomas Aquinas, the close collaboration between Jacob ben Makhir and Armengaud Blaise, as well as the significant intellectual exchange between Gersonides and his fellow Christians. Our objective is to answer the following questions: did Christian and Jewish scholars receive information according to their own intellectual value, ignoring their source? And was there a direct influence from one scholar towards the other? Thus, this study demonstrates the different motives of these exchanges through a contextual field constituted by a specific intellectual event. We will perceive that these relations vacillate between mistrust and admiration.

À cheval entre nature et culture, le poil et la chevelure humaine condensent un grand ensemble d’enjeux symboliques relevant de questions identitaires, religieuses, scientifiques, et autres. L’étude des discours et des pratiques concernant le poil représente, pour l’historien, une fenêtre sur l’évolution des mentalités d’une société donnée en ce qui concerne les perceptions de soi et de l’autre. S’inscrivant dans le courant intellectuel de l’histoire du corps, cette thèse s’intéresse plus précisément aux « systèmes trichologiques » dans la France de l’époque moderne (soit du XVIe au XVIIIe siècle). Elle se fonde sur l’analyse d’une grande variété de sources permettant de recouper différents types de discours touchant au poil : point de vue scientifique des médecins, physiognomonistes et historiens, point de vue prescriptif des traités d’éducation et de civilité, contrepoint exotique des récits de voyage et autres témoignages de « curiosités » ainsi qu’un suivi de l’évolution étymologique des mots pertinents au sein de dictionnaires et encyclopédies. La question centrale de cette thèse est celle du rôle du poil dans le façonnement de représentations servant à identifier, démarquer et hiérarchiser les groupes sociaux; et comment celles-ci évoluent de concert avec d’autres transformations historiques. Le premier chapitre s’intéresse au poil comme marqueur de différences individuelles. On y retrace une sorte de « langage » du poil, recensant les significations et connotations rattachées aux diverses manifestations pileuses : couleur, longueur, abondance, forme. Il y apparaît clairement que le poil joue un rôle important tant dans la mise en scène de soi que dans la lecture de l’apparence physique de l’autre. Le deuxième chapitre s’intéresse au poil en tant que marqueur de « genre ». On y examine la contribution des représentations de la pilosité dans la construction des identités masculines et féminines. Le poil s’interprète comme une manifestation extérieure de la nature des différents sexes et de leurs rôles dans la société, ce qui en fait un enjeu dans les relations de pouvoir entre les sexes et entre les gens du même sexe. Le troisième chapitre aborde le poil en ce qu’il permet de délimiter et hiérarchiser les classes sociales. On le voit participer aux modes et au processus de discipline des corps qui permettent aux élites, avec les perruques et le raffinement des conduites et des pratiques d’embellissement, de se distinguer autrement que par les vêtements. On retrace également une politique du poil qui s’étend au-delà du regard, l’état s’accordant le droit d’agir directement sur les corps – les chevelures, les poils – de ses sujets. Le dernier chapitre explore l’instrumentalisation du poil dans la construction d’un « autre » lointain et anormal : le sauvage d’outre-mer, l’enfant-loup, l’aberration de la nature. En caractérisant les poils de cas qu’ils situent aux frontières de l’humanité, les Français de l’Ancien régime exposent leurs propres présupposés sur la normalité et la civilisation. Cette thèse aboutit à un principe qui réunit et organise les signes de reconnaissance du poil à partir du regard construit et normé de ses propres poils que j’ai nommé « pilocentrisme ». Permettant de mettre en lumière le rôle du système pileux dans les modèles d’identification et de hiérarchisation, le concept de pilocentrisme peut ainsi servir de nouvelle catégorie d’analyse pour étudier les rapports de pouvoir dans l’histoire.

This thesis’ main object is to study on an historical level a long-lasting scientific controversy in Prehistoric archaeology, the Middle to Upper Palaeolithic transition, by attempting to explain the persistence of that debate in terms of construction and transformation of antagonistic models of explanation, and by showing how that controversy had play a role on the acquisition of knowledge, to elucidate how the debate itself had change since its origin. On a chronological scale, the evolution of some epistemological elements inside the confrontation of opposed hypothesis could be contrasted with conservative notions. To make that process clear, it is necessary to characterize what constitute that specific controversy for prehistorians with the tool given by the history of sciences, and what kind of analytical methodology can be call upon for doing so. Then, it will be possible to link those elements with the scientific problem itself to establish a structural model of this debate’s theoretical positions of the protagonists. This methodology could then be use to separate the history of that debate in three sections, each with its specific research axis, each phase in three structural level (data and methods, paradigms, meta-paradigm) to create a general model of the evolution of that controversy. The ambition of that thesis is to use history of science’s contribution as a way to clarify on a theoretical level the goals of that debate, and its implication on the study of cultural change for prehistorical archaeologists community, and to initiate for science’s historians a historical and structural model of scientific controversies, and their weight on conceptual change base on a specific case study.

This thesis examines the credit records between 1847 and 1872 of the Montreal branch of the Mercantile Agency, among the most important credit bureaus in 19th century North America. The 19th century saw the acceleration of transatlantic trade. Montreal, located between Great Britain and the United States, was at the crossroads of the economic expansion. In this period, commonly referred to as the transition to capitalism, the legal, commercial and financial institutions of the metropolis were forced to adjust. In the financial sector, the state was compelled to adopt bankruptcy laws to lessen the negative effects of bad debts and to encourage and support the spread of commercial credit. However, because of limited accessibility, and the complexity and costs of the procedure, the laws were unable to fully guarantee the recovery of loans and were deemed unsatisfactory by the business community. The thesis claims that the emergence of credit agencies responded to the needs of the business community to address problems of information asymmetry. These agencies, like the Mercantile Agency, established a type of self-regulation of commercial credit. They provided information on risk to lenders. To a large extent, the information gathered represented the opinion of the Montreal merchant community. The credit offices of the Mercantile Agency used this information to generate rankings of the credit worthiness of merchants. The information was disseminated to the Agency’s network of subscribers. In this fashion, the Agency contributed to the construction of an economy of reputations. The research, which is inspired by contributions to the new history of capitalism, explores the effects of the construction of the economy of reputations on the relationship between lenders and borrowers. I find that the structure of the relationship favored creditor over debtors. The chapters of the thesis describe the role of reputation in the creditor-debtor relationship, the determinants adopted to measure credit worthiness, and the tensions and conflicts that emerged in the economy of reputations.

Art history and cultural history in Quebec present many examples of “retours d’Europe” and of “French triumphs,” from the formative overseas stays of the “exotiques” in the 1910s to the stage success of Quebec “chansonniers” in Paris in the 1950s and 1960s. However, between the early 1930s and the mid-1950s, some of the most famous French-speaking artists based in Montréal preferred to go on tour in the United States. Many of them traveled New England year after year, sometimes going as far as New York City, to cheer the French-speaking public present along the way in the industrial cities of the region. Yet this episode of high mobility is almost absent from history, memory and cultural heritage in Quebec—and even more so in the United States. Beyond the impact of the Great Depression on Montréal’s cultural scene and of the Second World War on the possibility of visiting Europe, these artists have turned their eyes towards America because they participated in a transnational space, both geographical and symbolic, inherited from an era of great intracontinental migrations, then reactivated and reconfigured by the advent of sound and audiovisual media—discs, radio and cinema. By studying the history of the celebrity of Mary “La Bolduc” Travers, Rudy Vallée and Jean Grimaldi, this thesis attempts to access to the various layers of this phenomenon at the crossroads of cultural history, media history and migration history. Their intricate narratives therefore reveal the modality of mobility involved inside—and often times outside—of the French Canadian “imagined community.” By analyzing the heritagization process of these artists, it is possible to isolate some of the causes the oblivion of this transnational episode of francophone culture in North America, such as the rejection of mobility in the formation of national and ethnic identity narratives; the historical marginalization of popular arts; and the mistrust of the United States among cultural and political elites around the world at the time.

Historians have tried to determine what francophones read during the long 18th century for over a hundred years. To do so, they have studied library inventories, printing permits, and the archives of printer-editors, but these sources are fragmentary and of uncertain representativeness. This thesis reframes the question by studying, with a combination of computational methods and close reading, large digitized corpora that approximate the entire French-language print market of the long 18th century. Using these vast corpora, the thesis proposes and demonstrates that it is possible to pinpoint ideas to which readers were probably exposed frequently enough that the ideas influenced the readers’ mental maps of the world, regardless of what precise texts were involved in each case. Thus, the thesis shows that digital approaches constitute a major new tool for historians of reading and print, including (under some circumstances) when the only data at their disposal is OCR results plagued with high error rates. As an illustrative case study, the thesis examines imagined geographies, i.e., mental models of the world produced by exposition to print media containing direct or indirect descriptions of territories and their inhabitants. Concepts drawn from psychology, behavioural economics and media studies suggest how readers may have interiorized the messages transmitted by print and used them, consciously or not, to build their own imagined geographies. A study of some 70 000 volumes printed in French between 1700 and 1815, extracted from the Hathi Trust collection, shows that the Europe discussed in print expands eastward with time, that England draws most of the attention, and that discourses regarding most of the European powers are both remarkably stable and centred on war and aristocracy. Studies of major periodicals, cheap popular booklets (the Bibliothèque bleue), geography manuals and Raynal’s Histoire des deux Indes corroborate these findings. Examining the 14,547 geography articles published in Diderot’s Encyclopédie reveals a largely urban imagined geography that changes focus during publication, from Diderot’ purely descriptive science to a tool for cultural transmission when Louis de Jaucourt takes over primary writing duties; a parallel study of 6,053 articles drawn from all fields of knowledge shows that the Encyclopédie describes America as a young world rich in resources, primarily botanical, that are ripe for the taking. The way in which the colonial French Atlantic world is portrayed in the Ancien Régime’s main periodicals suggests that they may have played a role in the French public’s notoriously low interest for emigration to the colonies. Travel narratives of expeditions to the Pacific and around the world show tensions between the step-by-step construction of a utilitarian geography and the need to retain readers’ interest by multiplying picturesque or terrifying anecdotes. In all, print media propose to their readers imagined geographies that treat the outside world with distrust.

Cannibals, caravans under the burning desert sun, “Wild Indians” of the Northwest… these were just some of the exotic images that Quebec schoolchildren were presented with in the 19th century. In addition to being a vehicle for socialization into the nation, the school was also a window onto the wider world and a place to learn about stereotypes. What images of the Other, and produced by which ideologies, did Quebec schools transmit? How did Quebec youth become conscious of “otherness”? What recreative and pedagogical functions did these images serve? This thesis is an effort to answer these questions. The first three chapters of the thesis explore the rhetorical construction of otherness in the school. How was the Other identified and depicted? The rhetoric of otherness took many forms, from cultural distancing to racial essentializing. European imperialism and the knowledge it produced facilitated the classification of the world’s peoples, from which were drawn those peoples who had different and “bizarre” cultural practices. Consistent with the history of Orientalism, such fascination was particularly reserved for the peoples of Asia. But, as radical as the otherness of the Oriental could be, it did not attain the level of essentialization imposed on the “Negro,” defined by their race, and to the “Savage,” whose body was the primary indicator of their identity. Finally, the significant role that the figure of the Indian played in primary-level education is a reminder that it was key to realizing the very possibility of a national existence for Canadians – who were themselves essentialized as belonging to the civilized world. Far from having only been in the background of history, the Indian was at the heart of the narrative as the figure most likely to capture the interest of children. Retaining the interest of children was precisely what the pedagogy of the era was most concerned with as a means to develop various capacities, such as the power of observation and emotion, both of which the latter chapters of this thesis examines. Fascinated by the images they observed, children were exposed to a stereotyped representation of the Other that manifested itself across multiple disciplines. In employing the travel narratives of the European explorers, geography called upon students to imagine themselves elsewhere. The schoolwork of students explored here reveals their curiosity about and imaginings of far-off regions and peoples. Finally, we also see how a missionary rhetoric manipulated the emotional reactions of schoolchildren to poor non-Christian children and thereby used the school to transmit its message. The school setting ensured that children acquired a sense of authority over the Others that the educational discourse presented to them. The knowledge of the Others gave them a sense of superiority and authority. The school also transmitted a hierarchical vision of the world in which Canadian children, even those of the popular classes, belonged to the more privileged categories, that is to say to the white race and civilization. This highlights one of the central findings of this research: children were not defined as French-Canadians or English-Canadians vis-à-vis the Other; rather, they were defined as white and civilized. This thesis also shows how otherness was a pedagogical tool that public education privileged amid its expansion in the 19th century.

In the twentieth century, a multitude of people used psychoanalysis to explain their actions and gestures to one another. Their reliance on psychoanalysis, is an indication of how deeply they trusted its theories. This wide and profound diffusion, which has left a very strong impression on contemporary culture, remains however largely unexplained. This puzzling phenomenon becomes intelligible, from the moment one treats psychoanalysis as a grammar of interiority, which guides interactions by mediating them with symbols and common meanings (norms, values, etc.) specific to contemporary democratic societies (those that conceive themselves as emerging from an agreement between individuals). This social practice, the psychoanalytic inquiry, can be analyzed by situating in their contexts of interactions the speeches in which repressed desires were imputed to various conducts. Freud’s work provides a sample of such speeches. The description of the form and meaning that these imputations of repressed desires conferred to different ongoing interactions allows us to identify the specific features of the psychoanalytic inquiry. Freud shows that the repression arises from a conflict between a repressed presocial will and a socialized will, which enforces repression, born from requirements inculcated by the parental authority. Hence, to identify a repressed desire, one must simultaneously identify a repressing relationship. The psychoanalytic inquiry leads to review the different interpersonal and intrapersonal relationships in which the author of the repression is involved. This exercise leads to set apart the relationships that constrain the inner presocial will to social requirements, from those that rather emanate from this inner will. Since the former creates the repression and the unwanted symptoms it causes, the healing of the repression requires that its carrier distances oneself from inherited social requirements, in order to recognize one’s her inner will. By weighing the coercion on presocial wills exercised by specific relations, the psychoanalytic inquiry gauged these relations from a standard specific to contemporary democratic societies: the requirement to ground social relations on the unconstrained wills of the partners. The psychoanalytic inquiry was part of a modern social imaginary that shaped the form of a contract to various relationships. The people who used this inquiry showed that they were concerned about this requirement and they prompted a critical reaction to the relationships that constrained their will. In sum, the psychoanalytic inquiry provided the contemporary world with a way of organizing relationships that was adapted to a society that gave a preeminent authority to “contractual” requirements. That largely explains the breadth and depth of the diffusion of psychoanalysis in the twentieth century.

Cette étude, qui s'intéresse aux appropriations de l'Antiquité grecque au XXe siècle, se propose d'analyser les impacts de la lecture de Platon sur le développement de la pensée politique et éthique de Hannah Arendt. Notre approche du sujet est historique et philosophique. Premièrement, nous considérerons la toile de fond biographique, intellectuelle et historique de cette lecture. La relation intellectuelle entre Hannah Arendt et Martin Heidegger reçoit une attention particulière, puisque le Platon arendtien présente parfois des similarités avec celui de Heidegger. Nous considérerons également la réception de Platon en Allemagne entre la période de Weimar et l'après-guerre : les lectures idéologiques de l'époque nazie, et le débat autour du statut de Platon en tant qu'ancêtre du totalitarisme, clamé par Karl Popper, ont assombri la réputation philosophique de Platon jusqu'à la fin du XXe siècle. Nous trouvons des échos de ce climat intellectuel particulier dans le traitement de Platon chez Arendt. Dans un deuxième temps, nous examinerons les thèmes et les motifs de la lecture arendtienne en observant minutieusement une sélection d'ouvrages, d'essais, d'ébauches d'Arendt, en plus des notes du Journal de pensée (Denktagebuch) et des extraits de dialogues de Platon sur lesquels s'appuient sa lecture. Arendt déconstruit, transforme, altère et utilise ces textes afin de démontrer que notre tradition de pensée politique s'est édifiée sur un mépris de la politique qui trouve sa source dans la pensée platonicienne. Ce mépris culmine dans la pensée de Marx et le totalitarisme. Mais les réflexions d'Arendt sur la pensée, le jugement et la conscience, et son traitement du cas Eichmann suggère qu'elle s'approprie par moments la pensée de Platon. Des comparaisons avec d'autres penseurs émigrés allemands, qui s'inspirent aussi de Platon et des Grecs pour édifier leur pensée politique, Leo Strauss et Eric Voegelin, vont nous permettre d'affiner notre compréhension du Platon d'Arendt.

This thesis explores the different ways in which territory has historically been perceived, conceived and practiced through the experience and growth of mobility. It shows the crucial role that "automobility" played for touristic development in Quebec and Ontario and the ways it shaped parts of their territory. The present study examines the different measures adopted to promote tourism in newly developed regions and to both physically and symbolically transform these regions between 1920 and 1967. The thesis answers the following question: how and in which way has automobility transformed and created tourist regions? The period under study opens with the beginning of government intervention in the tourism industry through the creation of automobile-related infrastructure. The thesis carries its examination through the celebrations organised around the 100th anniversary of Canada and Expo 67 in Montreal, an event which led to large-scale territorial development necessary to accommodate an unprecedented number of automobiles from across Canada and the United States. This thesis first reconstitutes the processes involved in the creation of tourist regions: the conception, construction and promotion of the highway system; the implementation of itineraries and tourist routes; and the creation of useful tools that tourists might bring on their journey. It next examines beautification as a structuring element within the transformation of territories. Finally, advertising, travelogues and tourism practices are studied in detail in order to identify the mechanisms through which various actors contributed to fashioning representations of territories. This thesis reveals the close and complex ties that bound automobility, tourism and territorial modification as they developed during the 1920s. It helps to shed light on the historicity of certain approaches and orientations that remain current in the Canadian tourism industry, such as territorial development in terms of car accessibility. By showing the role that automobility played within the tourist experience, the present study adds to the developing understanding of the democratization of leisure. Often explained through higher standards of living as well as through the rise of leisure time and the spread within the working world of paid vacation, this democratization can also be explained through the greater accessibility of automobility, which, in turn, provided greater access to regions located further and further from urban areas. The recreational dimension of automobiling that was put forward early on in its history explains its rapid adoption by Canadians and other North Americans, as well as the dependence on cars that progressively spread through a large portion of the population.