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

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

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

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

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

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.

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

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.