Mathis Bertrand
Philosophy Student (Agrégation preparation)
Publications & Academic Works
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June 2026
Review of Pierre Bourdieu : genèse d'un sociologue by Victor Collard (CNRS Éditions, 2024). In Revue de synthèse, vol. 147 (1-2). [PDF] -
June 2024
Master's Thesis: "Sociological invention in Maurice Halbwachs: from Leibniz's philosophy to collective psychology", supervised by Marion Vorms (Paris I) and Éric Brian (EHESS). Defended at University Paris I Panthéon-Sorbonne. [HAL / DUMAS] -
October 2023
Review of the Anthologie de la calculabilité : naissance et développements de la théorie de la calculabilité des années 1920 à 1970 (edited by Michel Bourdeau and Jean Mosconi), Cassini, 2022. In Revue de Synthèse, vol. 144, n° 3-4 (2023), p. 423–437. [PDF]
Thesis Project
A first form of my project was presented under the supervision of Éric
Brian†
and Laurent
Mazliak. Its title was: "The reason of numbers: moral statistics, sociological thinking and the metaphysics of the average in France and Germany (1849-1918)".
It was admissible for funding from the "History and Civilizations" program of the EHESS
doctoral school in June 2025. Although the project is currently on pause, a copy of the proposal from that time is available upon request.
Other documents
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January 2026
Moritz Wilhelm Drobisch (1867), La Statistique morale et le libre-arbitre humain (Die moralische Statistik und die menschliche Willensfreiheit). French translation, notes. Working version.
Current version
Original text (1867). N.B. PDF file edited for screen readability. -
Moritz W. Drobisch (1867), "Review of Adolphe Quetelet’s On Moral Statistics and the Principles
Which Should Form Its Basis (Brussels, 1848)", Leipziger Repertorium der deutschen und
ausländischen Literatur, Vol. 25, 1849 (Year 7, Vol. 1). [PDF]
Communications & Talks
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May 6, 2026
Presentation and discussion of Guillaume Floc’h’s paper: “Cournot et la réappropriation du principe leibnizien de raison suffisante”
Leibniz Doctoral Seminar, École Normale Supérieure (ENS Ulm), Paris, France.
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January 30, 2026
« A logician in moral statistics: Moritz Wilhelm Drobisch’s Die
moralische Statistik und die menschliche Willensfreiheit (1867) »
Online Presentation at Pr. Ingolf Max's Oberseminar, University of Leipzig. [Slides]
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November 19, 2025
« The ‘Society of Mathematicians’ in Maurice Halbwachs: The Memory
of
Scientific Activity between Analysis and Synthesis »
Talk at the 35th Novembertagung on the History & Philosophy of Mathematics, Nancy, France. [Slides]
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March 28, 2025
« Statistics as a tool of sociological invention in Maurice
Halbwachs
: from the critique of the average to a discourse on sociological method? »
Talk at the Seminar on the History of Probability and Statistics (EHESS), Aubervilliers, France. [Slides revised]
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April 20, 2023
« Reason as calculation : from the Euclidian ratio to the ideal of a universal characteristic »
Informal talk at Giovanna Cifoletti's seminar, « Algebra as an Art of Thinking : from commercial arithmetic to method » (EHESS), Paris, France. [Material]
