The great end of life is not knowledge, but action. I believe it is the duty of each of us to act as if the fate of the world depended on him. We mus… - Hyman G. Rickover

Do not regard loyalty as a personal matter. A greater loyalty is one to the Navy or to the Country. When you know you are absolutely right, and when you are unable to do anything about it, complete military subordination to rules becomes a form of cowardice.

It is a human inclination to hope things will work out, despite evidence or doubt to the contrary. A successful manager must resist this temptation. This is particularly hard if one has invested much time and energy on a project and thus has come to feel possessive about it. Although it is not easy to admit what a person once thought correct now appears to be wrong, one must discipline himself to face the facts objectively and make the necessary changes — regardless of the consequences to himself. The man in charge must personally set the example in this respect. He must be able, in effect, to "kill his own child" if necessary and must require his subordinates to do likewise.

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...