We would not let ourselves be burned to death for our opinions: we are not sure enough of them for that.

The truthful man ends up realizing that he always lies.

In order to acquire intellect one must need it. One loses it when it is no longer necessary.

The hour when you say, "What does my happiness matter? It is poverty and filth, and a wretched complacency. Yet my happiness should justify existence itself!

The most spiritual human beings, assuming they are the most courageous, also experience by far the most painful tragedies: but it is precisely for this reason that they honor life, because it brings against them its most formidable weapons.

Thinking has to be learned in the way dancing has to be learned.

Nothing has been purchased more dearly than the little bit of reason and sense of freedom which now constitutes our pride.