The most perfidious way of harming a cause consists of defending it deliberately with faulty arguments.

A thinker sees his own actions as experiments and questions--as attempts to find out something. Success and failure are for him answers above all.

All things are subject to interpretation. Whichever interpretation prevails at a given time is a function of power and not truth.

One must reach out and try to grasp this astonishing finesse, that the value of lif cannot be estimated.

The maturity of man—that means, to have reacquired the seriousness that one had as a child at play

Es ist oft kein geringes Zeichen von Humanität, einen Andern nicht beurteilen zu wollen und sich zu weigern, über ihn zu denken.