Women react differently: a French woman who sees herself betrayed by her husband will kill his mistress; an Italian will kill her husband; a Spaniard will kill both; and a German will kill herself.

There is nothing one sees oftener than the ridiculous and magnificent, such close neighbors that they touch.

If I held all the thoughts of the world in my hand, I would be careful not to open it.

Hardly anyone knows how much is gained by ignoring the future.

I shall leave the world without regret, for it hardly contains a single good listener.

To be happy, one must have a good stomach and a bad heart.

Mathematicians are like lovers. Grant a mathematician the least principle, and he will draw from it a consequence which you must also grant him, and from this consequence another.