If you look at what you have in life, you’ll always have more. If you look at what you don’t have in life, you’ll never have enough.

Forget about all the reasons why something may not work. You only need to find one good reason why it will.

We can do more than we think we can.

The world is the great gymnasium where we come to make ourselves strong.

Two things are infinite: the universe and human stupidity.

The measure of intelligence is the ability to change.

The only thing new in the world is the history you don't know.