He who dies before many witnesses always does so with courage.

He who cannot shine by thought, seeks to bring himself into notice by a witticism.

Marriage is the only adventure open to the cowardly.

Paper money eventually returns to its intrinsic value - zero.

I never approved either the errors of his book, or the trivial truths he so vigorously laid down. I have, however, stoutly taken his side when absurd men have condemned him for these same truths.

It is far better to be silent than merely to increase the quantity of bad books.

I believe that there never was a creator of a philosophical system who did not confess at the end of his life that he had wasted his time. It must be admitted that the inventors of the mechanical arts have been much more useful to men that the inventors of syllogisms. He who imagined a ship towers considerably above him who imagined innate ideas.