Do I advise you to love the neighbor? I suggest rather to escape from the neighbor and to love those who are the farthest away from you. Higher than the love for the neighbor is the love for the man who is distant and has still to come.

Our crime against criminals lies in the fact that we treat them like rascals.

How poisonous, how crafty, how bad, does every long war make one, which cannot be waged openly by means of force!

Physiologists should think before putting down the instinct of self-preservation as the cardinal instinct of an organic being. A living thing seeks above all to discharge its strength--life itself is will to power; self-preservation is only one of the indirect and most frequent results.

Sleep is no mean art.

We have arranged for ourselves a world in which we can live - by positing bodies, lines, planes, causes and effects, motion and rest, form and content; without these articles of faith nobody could now endure life. But that does not prove them. Life is no argument. The conditions of life might include error.

So far there has been no philosopher in whose hands philosophy has not grown into an apology for knowledge; on this point, at least, every one is an optimist, that the greatest usefulness must be ascribed to knowledge. They are all tyrannized over by logic, and this is optimism in its essence.