Talent without genius isn't much, but genius without talent is nothing whatsoever.

One had to be a Newton to notice that the moon is falling, when everyone sees that it doesn't fall.

Ignorance is a treasure of infinite price that most men squander, when they should cherish its least fragments; some ruin it by educating themselves, others, unable to so much as conceive of making use of it, let it waste away. Quite on the contrary, we should search for it assiduously in what we think we know best. Leaf through a dictionary or try to make one, and you will find that every word covers and masks a well so bottomless that the questions you toss into it arouse no more than an echo.

Let us enrich ourselves with our mutual differences.

A man is infinitely more complicated than his thoughts.

Man is only man at the surface. Remove the skin, dissect, and immediately you come to machinery.

Nothing beautiful can be summarized.