The man of knowledge must be able not only to love his enemies but also to hate his friends.
In heaven, all the interesting people are missing.
Sometimes people don't want to hear the truth because they don't want their illusions destroyed.
We should consider every day lost on which we have not danced at least once.
There are no facts, only interpretations.
The individual has always had to struggle to keep from being overwhelmed by the tribe. If you try it, you will be lonely often, and sometimes frightened. But no price is too high to pay for the privilege of owning yourself.
He who has a why to live for 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.
When we are tired, we are attacked by ideas we conquered long ago.
In individuals, insanity is rare; but in groups, parties, nations and epochs, it is the rule.