It is in the half fools and the half wise that the greatest danger lies.

Everything in science depends on what one calls an aperçu, on becoming aware of what is at the bottom of the phenomena. Such becoming aware is infinitely fertile.

The miller imagines that the corn grows only to make his mill turn.

If you wish a wise answer, you must put a rational question.

He who only tastes his error will long dwell with it, will take delight in it as in a singular felicity; while he who drains it to the dregs will, if he be not crazy, find it to be what it is.

We are never further from what we wish than when we believe that we have what we wished for.

Is not the core of nature in the heart of man?