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.

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

Just because something doesn't do what you planned it to do doesn't mean it's useless.

If one does not know to which port one is sailing, no wind is favorable.

It's not what you pay a man, but what he costs you that counts.

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

Business is never so healthy as when, like a chicken, it must do a certain amount of scratching around for what it gets.

Corporation: An ingenious device for obtaining profit without individual responsibility.

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