A few choice morsels from Nietzsche's Apophthegms

"The devil has the most extensive perspectives for God; on that account he keeps so far away from him:—the devil, in effect, as the oldest friend of knowledge."

"What a person IS begins to betray itself when his talent decreases,—when he ceases to show what he CAN do. Talent is also an adornment; an adornment is also a concealment."

"One is punished best for one’s virtues."

"He who fights with monsters should be careful lest he thereby become a monster. And if thou gaze long into an abyss, the abyss will also gaze into thee."

"Love brings to light the noble and hidden qualities of a lover—his rare and exceptional traits: it is thus liable to be deceptive as to his normal character."

"One does not hate as long as one disesteems, but only when one esteems equal or superior."

“I am affected, not because you have deceived me, but because I can no longer believe in you.”

THE DISAPPOINTED ONE SPEAKS—"I listened for the echo and I heard only praise”.

"A soul which knows that it is loved, but does not itself love, betrays its sediment: its dregs come up."

"What? A great man? I always see merely the play-actor of his own ideal."

The maturity of man—that means, to have reacquired the seriousness that one had as a child at play.