The early Heidegger
Henri Bergson began his intellectual life as a follower of Herbert Spencer but soon broke with him on core philosophical issues. In Creative Evolution, while acknowledging the powerful attraction Spencerian evolutionism has exerted on contemporary thought, he goes so far as to contend that this evolutionism deals in fact neither with becoming nor with evolution. Bergson. At the end of chapter three of Creative Evolution, Bergson turns his attention to a consideration of the question of the "significance" of evolution, and the way in which this is revealed in "man". The novel modernity of Bergsonism lies, for Gilles Deleuze, in its critique of metaphysics and of a science that has forgotten the durational character of life and imposed on it an abstract mechanics. The reductionistic or mechanistic focus on parts that Bergson criticized in neo-Darwinism is today most clearly evident in genetics, and is subjected to a similar criticism by a number of biologists.