Morality is neither rational nor absolute nor natural. World has known many moral systems, each of which advances claims universality; all moral systems are therefore particular, serving a specific purpose for their propagators or creators, and enforcing a certain regime that disciplines human beings for social life by narrowing our perspectives and limiting our horizons.
There is a great ladder of religious cruelty, and, of its many rungs, three are the most important. People used to make human sacrifices to their god, perhaps even sacrificing those they loved the best ... Then, during the moral epoch of humanity, people sacrificed the strongest instincts they had, their 'nature,' to their god... Finally: what was left to be sacrificed? ... Didn't people have to sacrifice God himself and worship rocks, stupidity, gravity, fate, or nothingness out of sheer cruelty to themselves?
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.
O sancta simplicitas! What strange simplification and falsification mankind lives on! One can never cease to marvel once one has acquired eyes for this marvel! How we have made everything around us bright and free and easy and simple! How we have known how to bestow on our senses a passport to everything superficial, on our thoughts a divine desire for wanton gambling and false conclusions! - how we have from the very beginning understood how to retain our ignorance so as to enjoy an almost inconceivable freedom, frivolity, impetuosity, bravery, cheerfulness of life, so as to enjoy life!
Could truth perhaps be a woman who has reasons for not permitting her reasons to be seen? Could her name perhaps be--to speak Greek--Baubo?... Oh, those Greeks! They understood how to live: to do that it is necessary to stop bravely at the surface, the fold, the skin, to adore the appearance, to believe in forms, in tones, in words, in the whole Olympus of appearance! Those Greeks were superficial--out of profundity!
To regard states of distress in general as an objection, as something which must be abolished is the greatest nonsense on earth; having the most disastrous consequences, fatally stupid- almost as stupid as a wish to abolish bad weather - out of pity for the poor.
If you are too weak to give yourselves your own law, then a tyrant shall lay his yoke upon you and say: "Obey! Clench your teeth and obey!" And all good and evil shall be drowned in obedience to him.