As soon as you are in a social setting, you better take away the key to the lock of your heart and pocket it; those who leave thekey in the lock are fools.

Say what we may of the inadequacy of translation, yet the work is and will always be one of the weightiest and worthiest undertakings in the general concerns of the world.

Mannerism is always longing to have done, and has no true enjoyment in work. A genuine, really great talent, on the other hand, has its greatest happiness in execution.

Girls we love for what they are; young men for what they promise to be.

The realization of the self is only possible if one is productive, if one can give birth to one's own potentialities.

The greatest act of faith takes place when a man finally decides that he is not God.

What must the English and French think of the language of our philosophers when we Germans do not understand it ourselves?