It is of man's essence to create materially and morally, to fabricate things and to fabricate himself. Homo faber is the definition I propose ... Homo faber, Homo sapiens, I pay my respects to both, for they tend to merge.

It is emotion that drives the intelligence forward in spite of obstacles.

Some other faculty than the intellect is necessary for the apprehension of reality.

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

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

The vital spirit. L'élan vital

Only those ideas that are least truly ours can be adequately expressed in words.