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.

The eye sees only what the mind is prepared to comprehend. -Henri Bergson.

To perceive means to immobilize. We seize, in the act of perception, something which outruns perception itself.

When we make the cerebral state the beginning of an action, and in no sense the condition of a perception, we place the perceived images of things outside the image of our body, and thus replace perception within the things themselves.

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

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