An economist's guess is liable to be as good as anybody else's.

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

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.

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

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

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 you listen to your fears, you will die never knowing what a great person you might have been.

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