What do you regard as most humane? To spare someone shame.

The strongest and most evil spirits have to date advanced mankind the most: they always rekindled the sleeping passions - all orderly arranged society lulls the passions to sleep; they always reawakened the sense of comparison, of contradiction, of delight in the new, the adventurous, the untried; they compelled men to set opinion against opinion, ideal plan against ideal plan.

The wheel and the brake have different duties, but also one in common: to hurt one another.

To live alone one must be a beast or a god, says Aristotle. Leaving out the third case: one must be both - a philosopher.

The word 'Christianity' is already a misunderstanding - in reality there has been only one Christian, and he died on the Cross.

It takes just such painful and terrible things to occur for the great emancipation to take place.

There is a certain right by which we many deprive a man of life, but none by which we may deprive him of death; this is mere cruelty.