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

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

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.

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

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

In this world nothing can be said to be certain, except death and taxes.

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

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

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