Note sur M. Bergson et la philosophie bergsonienne. Note conjointe sur M. Descartes et la philosophie cartésienne. // [Notice on M. Bergson and bergsonian philosophy. Adjoined notice on M. Descartes and cartesian philosophy] Charles Péguy 2016 1 theory and philosophy of historiography 2 substantive philosophy of history classics of substantial philosophy of history classics of theory and philosophy of historiography epistemology ethics/justice existentialism religion/theology/secularization (and history/history of) truth (historical)