Full Idea
When philosophy makes itself intelligible, it commits suicide.
Gist of Idea
When philosophy makes itself intelligible, it commits suicide
Source
Martin Heidegger (Contributions of Philosophy (On Appropriation) [1938], §259), quoted by Richard Polt - Heidegger: an introduction 5 'Contributions'
Book Reference
Polt,Richard: 'Heidegger: an introduction' [Routledge 2003], p.141
A Reaction
Polt describes this remark as 'theatrical', but it seems to speak for itself!