Peace is never long preserved by weight of metal or by an armament race. Peace can be made tranquil and secure only by understanding and agreement fortified by sanctions. We must embrace international cooperation or international disintegration. Science has taught us how to put the atom to work. But to make it work for good instead of for evil lies in the domain dealing with the principles of human dignity. We are now facing a problem more of ethics than of physics.

Behind the black portent of the new atomic age lies a hope which, seized upon with faith, can work out salvation... Let us not deceive ourselves: we must elect world peace or world destruction.

Science has taught us how to put the atom to work. But to make it work for good instead of for evil lies in the domain dealing with the principles of human dignity. We are now facing a problem more of ethics than of physics.

Most of the successful people I know mostly listen, not talk.

Most of the successful people I've known are the ones who do more listening than talking.

Old books that have ceased to be of service should no more be abandoned than should old friends who have ceased to give pleasure.

Making a success of the job at hand is the best step toward the kind you want.