I appeal to all men and women, whether they be eminent or humble, to declare that they will refuse to give any further assistance to war or the preparation of war.

Marie Curie is, of all celebrated beings, the only one whom fame has not corrupted.

My life is a simple thing that would interest no one. It is a known fact that I was born, and that is all that is necessary.

If we trace out what we behold and experience through the language of logic, we are doing science; if we show it in forms whose interrelashionships are not accessible to our conscious thought but we are intuitively recognized as meaningful, we are doing art.

A permanent peace cannot be prepared by threats but only by the honest attempt to create a mutual trust. However strong national armaments may be, they do not create military security for any nation nor do they guarantee the maintenance of peace.

The truth of a theory can never be proven, for one never knows if future experience will contradict its conclusions.

Life is a Mystery, not a problem waiting to be solved.