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.

A political leader must keep looking over his shoulder all the time to see if the boys are still there. If they arent still there, hes no longer a political leader.

So efficient are the available instruments of slavery; fingerprints, lie detectors, brain washings, gas chambers; that we shiver at the thought of political change which might put these instruments in the hands of men of hate.

The longer I operated on Wall Street the more distrustful I became of tips and inside information of every kind. Given time, I believe that inside information can break the Bank of England

Don't try to be a jack of all investments. Stick to the field you know best.

All economic movements, by their very nature, are motivated by crowd psychology.

During my eighty-seven years I have witnessed a whole succession of technological revolutions. But none of them has done away with the need for character in the individual or the ability to think.