The people who get on in this world are the people who get up and look for circumstances they want, and if they cannot find them, make them.

The best way to think about a program is to think about it.

The rule, or measuring rod, which the behaviorist puts in front of him always is: Can I describe this bit of behavior I see in terms of "stimulus and response"?

"Courage is not the absence of fear, but the triumph over it."

My work is proof of self-obliteration.

人是从失败中学习的。