The spiritual movement of Kantianism remains sound. La Philosophie du non 106 Kantianism has left the employment of the categories incoherent. La Philosophie du non 67.

SummaryThe paper exposes the views of Ernst Cassirer and Martin Heidegger on the dynamics of the sciences of their day, as both developed them in the two decades after the encounter of the two philosophers in Davos in 1928. It emphasizes points of common concern, and it compares their positions to those of contemporary philosophers of science Gaston Bachelard and Edgar Wind.