Revolutionaries do not make revolutions. The revolutionaries are those who know when power is lying in the street and then they can pick it up.

Plurality of languages: [...] It is crucial 1. that there are many languages and that they differ not only in vocabulary, but also in grammar, and so in mode of thought and 2. that all languages are learnable.

There are no dangerous thoughts; thinking itself is dangerous.

The extreme form of power is All against One, the extreme form of violence is One against All.

What really distinguishes this generation in all countries from earlier generations ... is its determination to act, its joy in action, the assurance of being able to change things by one's own efforts.

A theology which is not based on revelation as a given reality but treats God as an idea would be as mad as a zoology which is no longer sure of the physical, tangible existence of animals.

Economic growth may one day turn out to be a curse rather than a good, and under no conditions can it either lead into freedom or constitute a proof for its existence.