I consider it important, indeed urgently necessary, for intellectual workers to get together, both to protect their own economic status and, also, generally speaking, to secure their influence in the political field.

The goal of pacifism is possible only though a supranational organization. To stand unconditionally for this cause is the criterion of true pacifism.

I speak to everyone in the same way, whether he is the garbage man or the president of the university.

Feeling and longing are the motive forces behind all human endeavor and human creations.

Nothing truly valuable can be achieved except by the unselfish cooperation of many individuals.

There is nothing divine about morality; it is a purely human affair. If people are good only because they fear punishment, and hope for reward, then we are a sorry lot indeed. What the individual can do is to give a fine example, and to have the courage to uphold ethical values .. in a society of cynics.

The release of atomic energy has not created a new problem. It has merely made more urgent the necessity of solving an existing one.