Knowledge, in so far as it is directed to practical matters, has only to enumerate the principal possible attitudes of the thing towards us, as well as our best possible attitude towards it. Therein lies the ordinary function of ready-made concepts, those stations with which we mark out the path of becoming. But to seek to penetrate with them into the inmost nature of things, is to apply to the mobility of the real a method created in order to give stationary points of observation on it.

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

We are free when our actions emanate from our total personality, when they express it, when they resemble it in the indefinable way a work of art sometimes does the artist.

It seems that laughter needs an echo.

I would say act like a man of thought and think like a man of action.

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

I cannot escape the objection that there is no state of mind, however simple, that does not change every moment