One must never have spared oneself, one must have acquired hardness as a habit to be cheerful and in good spirits in the midst of nothing but hard truths.

Every word is a preconceived judgment.

Beyond Good and Evil, Aphorism 153

If you stare into the Abyss long enough the Abyss stares back at you.

Narrow souls I cannot abide; There's almost no good or evil inside

Whoever turns away from us might not offend us in doing so perhaps, but he certainly offends our followers.

We must learn to love, learn to be kind, and this from the earliest youth; if education or chance give us no opportunity to practice these feelings, our soul becomes dry and unsuited even to understanding the tender inventions of loving people.