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

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

Failure doesn't mean you are a failure it just means you haven't succeeded yet.

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

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

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

Most of the important things in the world have been accomplished by people who have kept on trying when there seemed to be no hope at all.

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

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

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