There is no substitute for accurate knowledge. Know yourself, know your business, know your men.

So what do we do? Anything. Something. So long as we just don't sit there. If we screw it up, start over. Try something else. If we wait until we've satisfied all the uncertainties, it may be too late.

In a completely rational society, the best of us would aspire to be teachers and the rest of us would have to settle for something less, because passing civilization along from one generation to the next ought to be the highest honor and the highest responsibility anyone could have.

Incompetency begets incompetency. The last thing a guy who isn't sure of himself wants is a guy backing him up who is sure of himself.

If we wait until we've satisfied all the uncertainties, it may be too late.

People want economy, and they'll pay any price to get it.

No matter what you've done for yourself or for humanity, if you can't look back on having given love and attention to your own family, what have you really accomplished?