“Whoever does not have two-thirds of his day for himself, is a slave, whatever he may be: a statesman, a businessman, an official, or a scholar.”

The higher we soar, the smaller we appear to those who cannot fly.

The advantage of a bad memory is that one enjoys several times the same good things for the first time.

And if you gaze for long into an abyss, the abyss gazes also into you.

He who has a why to live can bear almost any how.

The snake which cannot cast its skin has to die. As well the minds which are prevented from changing their opinions; they cease to be mind.

There are no facts, only interpretations.

He who cannot put his thoughts on ice should not enter into the heat of dispute.

Whoever fights monsters should see to it that in the process he does not become a monster.