Science means simply the aggregate of all the recipes that are always successful. All the rest is literature.

An artist never really finishes his work, he merely abandons it.

Sometime I think; and sometime I am.

All nations have present, or past, or future reasons for thinking themselves incomparable.

I thought it necessary to study history, even to study it deeply, in order to obtain a clear meaning of our immediate time.

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

You have certainly observed the curious fact that a given word which is perfectly clear when you hear it or use it in everyday language, and which does not give rise to any difficulty when it is engaged in the rapid movement of an ordinary sentence becomes magically embarrassing, introduces a strange resistance, frustrates any effort at definition as soon as you take it out of circulation to examine it separately and look for its meaning after taking away its instantaneous function.