Success comes from curiosity, concentration, perseverance and self criticism.

While it is true that an inherently free and scrupulous person may be destroyed, such an individual can never be enslaved or used as a blind tool.

The most evident difference springs from the important part which is played in man by a relatively strong power of imagination and by the capacity to think, aided as it is by language and other symbolically devices.

I never think of the future. It comes soon enough. When visiting the U.S. from Germany for a winter academic stay.

Any government is evil if it carries within it the tendency to deteriorate into Tyranny. The danger of such deterioration is more acute in a country in which the government has authority not only over the armed forces but also over every channel of education and information.

There is a driving force more powerful than steam, electricity and nuclear power: the will.

You believe in a God who plays dice, I in complete law and order.