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

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.

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.

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

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

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

Hell, there are no rules here - we're trying to accomplish something.

I am certainly not one of those who need to be prodded. In fact, if anything, I am the prod.

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