As men are not able to fight against death, misery, ignorance, they have taken it into their heads, in order to be happy, not to think of them at all.

The art of subversion, of revolution, is to dislodge established customs by probing down to their origins in order to show how they lack authority and justice.

What amazes me most is to see that everyone is not amazed at his own weakness.

The heart has its order, the mind has its own, which uses principles and demonstrations. The heart has a different one. We do not prove that we ought to be loved by setting out in order the causes of love; that would be absurd.

The secrets of nature are concealed; her agency is perpetual, but we do not always discover its effects; time reveals them from age to age; and although she is always the same in herself, she is not always equally well known.

Who knows if this other half of life where we think we're awake is not another sleep a little different from the first.

Two things control men's nature, instinct and experience.