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

The hardest thing to understand in the world is the income tax.

The superior man understands what is right the inferior man understands what will sell.

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

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

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.

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

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

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