I see plainly how external images influence the image that I call my body : they transmit movement to it.

Instinct perfected is a faculty of using and even constructing organized instruments; intelligence perfected is the faculty of making and using unorganized instruments.

The movement of the stream is distinct from the river bed, although it must adopt its winding course.

In laughter we always find an unavowed intention to humiliate and consequently to correct our neighbour.

Art has no other object than to set aside the symbols of practical utility, the generalities that are conventionally and socially accepted, everything in fact which masks reality from us, in order to set us face to face with reality itself.

I believe that the time given to refutation in philosophy is usually time lost. Of the many attacks directed by many thinkers against each other, what now remains? Nothing, or assuredly very little. That which counts and endures is the modicum of positive truth which each contributes. The true statement is, of itself, able to displace the erroneous idea, and becomes, without our having taken the trouble of refuting anyone, the best of refutations.

Life does not proceed by the association and addition of elements, but by dissociation and division.