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

[Heraclitus had] the highest form of pride [stemming] from a certainty of belief in the truth as grasped by himself alone. He brings this form, by its excessive development, into a sublime pathos by involuntary identification of himself with his truth.

It is the business of the very few to be independent; it is a privilege of the strong.

But thus do I counsel you, my friends: distrust all in whom the impulse to punish is powerful! Distrust all those who talk much of their justice!

Resistance - that is the distinction of the slave. Let your distinction be obedience. Let your commanding itself be obeying!

The lie is a condition of life.

That which needs to be proved cannot be worth much.