Friedrich Nietzsche

What does not kill me, makes me stronger.
Twilight of the Idols
Man does not strive for happiness; only the Englishman does that
Twilight of the Idols
I am a disciple of the philosopher Dionysus, I would rather be a satyr than a saint.
Ecce Homo
If a temple is to be erected, a temple must be destroyed.
On the Genealogy of Morality
To see others suffer does one good, to make others suffer even more: this is a hard saying but an ancient, mighty, human, all-too-human principle which even the apes might subscribe; for it has been said that in devising bizarre cruelties they anticipate man and are, as it were his "prelude."
On the Genealogy of Morality
That every will must consider every other will its equal — would be a principle hostile to life, an agent of the dissolution and destruction of man, an attempt to assassinate the future of man, a sign of weariness, a secret path to nothingness.
On the Genealogy of Morality
I teach you the Overman. Man is something which shall be surpassed.
Thus Spake Zarathustra.
God is dead! God remains dead! And we have killed him. How shall we comfort ourselves, the murderers of all murderers?
The Gay Science
Without art we would be nothing but foreground and live entirely in the spell of that perspective which makes what is closest at hand and most vulgar appear as if it were vast, and reality itself.
The Gay Science
Whatever has value in our world now does not have value in itself, according to its nature — nature is always value-less, but has been given value at some time, as a present — and it was we who gave and bestowed it.
The Gay Science
One will rarely err if extreme actions be ascribed to vanity, ordinary actions to habit, and mean actions to fear.
Human, All Too Human
The mother of excess is not joy but joylessness.
Human, All Too Human
Art is the supreme task and the truly metaphysical activity in this life...
The Birth of Tragedy