An absolute can only be given in an intuition, while all the rest has to do with analysis. We call intuition here the sympathy by which one is transported into the interior of an object in order to coincide with what there is unique andconsequently inexpressible in it. Analysis, on the contrary, is the operation which reduces the object to elements already known.

And I also see how this body influences external images: it gives back movement to them.

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.

There is no greater joy than that of feeling oneself a creator. The triumph of life is expressed by creation.

In short, intelligence, considered in what seems to be its original feature, is the faculty of manufacturing artificial objects, especially tools to make tools, and of indefinitely varying the manufacture.

Homo sapiens, the only creature endowed with reason, is also the only creature to pin its existence on things unreasonable.

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