Whatever is the lot of humankind I want to taste within my deepest self. I want to seize the highest and the lowest, to load its woe and bliss upon my breast, and thus expand my single self titanically and in the end go down with all the rest.

Die Mathematiker sind eine Art Franzosen. Spricht man zu ihnen, so übersetzen sie alles in ihre eigene Sprache, und so wird es alsobald etwas ganz anderes. Mathematicians are a kind of Frenchmen. Whenever you say anything or talk to them, they translate it into their own language, and right away it is something completely different.

All of us, just because we are able to talk, also believe we are able to talk about language.

There are situations in which hope and fear run together, in which they mutually destroy one another and lose themselves in dull indifference.

If each one does their duty as an individual and if each one works in their own proper vocation, it will be right with the whole.

Be above it! Make the world serve your purpose, but do not serve it.

The world is so full of simpletons and madmen, that one need not seek them in a madhouse.