If one uses one's intellect to become master over the unlimited emotions, it may produce a sorry and diversionary effect upon the intellect.

The unselective knowledge drive resembles the indiscriminate sexual drive--signs of vulgarity!

There is no more dangerous error than that of mistaking the consequence for the cause.

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

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.

The Christian resolution to find the world ugly and bad has made the world ugly and bad.

There did he sit shrivelled in his chimney corner, fretting on account of his weak legs, world weary, will weary, and one day he suffocated through his excessive pity.