Spirit borrows from matter the perceptions on which it feeds and restores them to matter in the form of movements which it has stamped with its own freedom.

You will obtain a vision of matter that is perhaps fatiguing for your imagination, but pure and stripped of what the requirements of life make you add to it in external perception.

Our laughter is always the laughter of a group.

There is nothing in philosophy which could not be said in everyday language.

To exist is to change, to change is to mature, to mature is to go on creating oneself endlessly.

To perceive means to immobilize. To say this is to say that we seize, in the act of perception, something which outruns perception itself.

To drive out the darkness, bring in the light.