In war personal revenge maintains its silence.

if we possess a why of life we can put up with almost any how.

The text has disappeared under the interpretation.

The thirst for equality can express itself either as a desire to draw everyone down to one's level, or to raise oneself and everyone else up.

One lives for the day, one lives very fast, one lives very irresponsibly: precisely this is called "freedom."

Idleness is the beginning of all psychology. What? Could it be that psychology is ? a vice?

Physiologists should think before putting down the instinct of self-preservation as the cardinal instinct of an organic being. A living thing seeks above all to discharge its strength--life itself is will to power; self-preservation is only one of the indirect and most frequent results.