There is no more dreary or more repulsive creature than the man who has evaded his genius.

The really royal calling of the philosopher (as expressed by Alcuin the Anglo-Saxon): To correct what is wrong, and strengthen the right, and raise what is holy.

Mastery has been achieved when one neither makes a mistake nor hesitates in the performance.

Without meaning, without substance, without aim: a mere 'public opinion'.

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.

One will rarely err if extreme actions be ascribed to vanity, ordinary actions to habit, and mean actions to fear.

You shall not steal! You shall not kill! Such words were once called holy; before them people bowrd their knees and heads, and removed their shoes. But I ask you: where have there ever been better thieves and killers in the world than such holy words have been? Is there not in all of life itself - robbing and killing? And when such words were called holy, was not truth itself thereby - killed?