Effort only fully releases its reward after a person refuses to quit.

Sometimes when you innovate, you make mistakes. It is best to admit them quickly, and get on with improving your other innovations.

I think that there is nothing, not even crime, more opposed to poetry, to philosophy, ay, to life itself than this incessant business.

There are no secrets to success. It is the result of preparation, hard work, and learning from failure.

No enterprise is more likely to succeed than one concealed from the enemy until it is ripe for execution.

If all the economists were laid end to end, they'd never reach a conclusion.

A budget tells us what we can't afford, but it doesn't keep us from buying it.

It usually takes me more than three weeks to prepare a good impromptu speech.

If you can build a business up big enough, it's respectable.

If there is anything that a man can do well, I say let him do it. Give him a chance.