What is the true test of character unless it be its progressive development in the bustle and turmoil, in the action and reaction of daily life.

In the end we retain from our studies only that which we practically apply.

Nothing is more disgusting than the majority: because it consists of a few powerful predecessors, of rogues who adapt themselves, of weak who assimilate themselves, and the masses who imitate without knowing at all what they want.

When one is polite in German, one lies.

Freedom consists not in refusing to recognize anything above us, but in respecting something which is above us; for by respecting it, we raise ourselves to it, and, by our very acknowledgment, prove that we bear within ourselves what is higher, and are worthy to be on a level with it.

Every solution of a problem is a new problem.

The century is advanced, but every individual begins afresh.