The state was made for man, not man for state.

The only real valuable thing is intuition.

The number of natural hypothesis that can explain any given phenomena is infinite.

Outer changes always begin with an inner change of attitude.

You cannot solve current problems with current thinking. Current problems are the result of current thinking.

A world government with powers adequate to guarantee security is not a remote ideal for the distant future. It is an urgent necessity if our civilization is to survive.

But without deeper reflection one knows from daily life that one exists for other people--first of all for those upon whose smiles and well-being our own happiness is wholly dependent, and then for the many, unknown to us, to whose destinies we are bound by the ties of sympathy.