I believe that we don't need to worry about what happens after this life, as long as we do our duty here-to love and to serve.
We will never be able to solve the problems of tomorrow with the thinking of today
Playfullness is the essential feature of productive thought.
The only sure way to avoid making mistakes is to have no new ideas.
It is impossible to get anywhere without sinning against reason.
Through the release of atomic energy, our generation has brought into the world the most revolutionary force since prehistoric man's discovery of fire. This basic force of the universe cannot be fitted into the outmoded concept of narrow nationalisms.