The trouble with our times is that the future is not what it used to be.

Books have the same enemies as people: fire, humidity, animals, weather, and their own content.

Every beginning is a consequence - every beginning ends some thing.

Nothing is more natural than mutual misunderstanding; the contrary is always surprising. I believe that one never agrees on anything except by mistake, and that all harmony among human beings is the happy fruit of an error.

The great virtues of the German people have created more evils than idleness ever did vices

The only truths which are universal are those gross enough to be thought so.

To enter into your own mind you need to be armed to the teeth.