Friedrich Nietzsche

The best friend is likely to acquire the best wife, because a good marriage is based on the talent for friendship.

All in all, punishment hardens and renders people more insensible; it concentrates; it increases the feeling of estrangement; it strengthens the power of resistance.

The more abstract the truth you want to teach, the more thoroughly you must seduce the senses to accept it.

Man... cannot learn to forget, but hangs on the past: however far or fast he runs, that chain runs with him.

You gave him an opportunity of showing greatness of character and he did not seize it. He will never forgive you for that.

What doesn't kill us makes us stronger.

One ought to hold on to one's heart; for if one lets it go, one soon loses control of the head too.

A woman may very well form a friendship with a man, but for this to endure, it must be assisted by a little physical antipathy.

The lonely one offers his hand too quickly to whomever he encounters.

He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you.