What humanity owes to personalities like Buddha, Moses, and Jesus ranks for me higher than all the achievements of the enquiring and constructive mind.

The tragedy of life is what dies in the hearts and souls of people while they live.

I find it difficult to believe that I belong to such an idiotic, rotten species - the species that actually boasts of its freedom of will, heroism on command, senseless violence, and all of the loathsome nonsense that goes by the name of patriotism.

I must be willing to give up what I am in order to become what I will be.

Non-cooperation in military matters should be an essential moral principle for all true scientists.

Mankind must give up war in the Atomic Era. What is at stake is the life or death of humanity.

You are right in speaking of the moral foundations of science, but you cannot turn around and speak of the scientific foundations of morality.