God did not create evil. Just as darkness is the absence of light, evil is the absence of God.

I assert that the cosmic religious experience is the strongest and the noblest driving force behind scientific research.

Creativity is contagious. Pass it on.

God does not care about our mathematical difficulties. He integrates empirically.

Einstein was once asked how many feet are in a mile. Einstein's reply was "I don't know, why should I fill my brain with facts I can find in two minutes in any standard reference book?

The same thinking that has led you to where you are is not going to lead you to where you want to go.

Do not grow old, no matter how long you live. Never cease to stand like curious children before the Great Mystery into which we were born.