"We may be living in a world where the future is already written, but we still have the power to change it."

"Any man whose errors take ten years to correct is quite a man."

"We are living in a world which is profoundly new, and profoundly dangerous."

"There must be no barriers for freedom of inquiry... There is no place for dogma in science."

"We have to learn to live with the bomb, but we must also learn to live without it."