An unexamined life is not worth living.
The only true wisdom is in knowing you know nothing.
Nature has given us two ears, two eyes, and but one tongue-to the end that we should hear and see more than we speak.
I cannot teach anybody anything, I can only make them think.
Wisdom begins in wonder.
It is a beggar's pride that he is not a thief
Once I could persuade these guys that all I wanted to hear from them was what they did - Tell me what you do - once you can persuade someone that this is all you're after, you can't shut them up because we're all fascinated by what we do.
(September 19, 1920 - )
Those who do not learn from history are doomed to repeat it