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.

I think that there is nothing, not even crime, more opposed to poetry, to philosophy, ay, to life itself than this incessant business.

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

A budget tells us what we can't afford, but it doesn't keep us from buying it.

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

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.

If you cannot work with love but only with distaste, it is better that you should leave your work.

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