Success teaches us nothing; only failure teaches.

When the men in Russia foul up, they are dismisses, sometimes losing their necks. But we protect those who fail and press them to the government bosom.

A child is being properly educated only when he is learning to become independent of his parents.

In Greek mythology, Antaeus was a giant who was strong as long as he had contact with the earth. When he was lifted from the earth he lost strength. So it is with engineers. They must not become isolated from the real world...

It troubles me that we are so easily pressured by purveyors of technology into permitting so-called "progress" to alter our lives without attempting to control it-as if technology were an irrepressible force of nature to which we must meekly submit.

To doubt one's own first principles is the mark of a civilized man. Don't defend past actions; what is right today may be wrong tomorrow. Don't be consistent; consistency is the refuge of fools.

I do not have regrets. I believe I helped preserve the peace for this country. Why should I regret that? What I accomplished was approved by Congress -- which represents our people. All of you live in safety from domestic enemies because of security from the police. Likewise, you live in safety from foreign enemies because our military keeps them from attacking us.