Yesterday is gone. Tomorrow has not yet come. We have only today. Let us begin.

A journey of a thousand miles begins with a single step.

Life would be tragic if it weren't funny.

Happiness is not something ready made. It comes from your own actions.

People who boast about their I.Q. are losers.

My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all.

Do what you can, with what you have, where you are.

The man who does not read has no advantage over the man who cannot read.

Do more than just exist.