Ability is what you're capable of doing. Motivation determines what you do. Attitude determines how well you do it.

This is one small step for a man, one giant leap for mankind.

The biggest adventure you can ever take is to live the life of your dreams.

When I was in college, I wanted to be involved in things that would change the world.

Out of intense complexities intense simplicities emerge.

To be yourself in a world that is constantly trying to make you something else is the greatest accomplishment.

Find out who you are and do it on purpose.

It always seems impossible until it's done.

Any book that helps a child to form a habit of reading, to make reading one of his deep and continuing needs, is good for him.

For me, I'm focused on what I want to do. I know what I need to do to be a champion, so I'm working on it.

You must never be fearful about what you are doing when it is right.

The secret to creativity is knowing how to hide your sources.

I discover myself on the verge of a usual mistake.

A long apprenticeship is the most logical way to success. The only alternative is overnight stardom, but I can't give you a formula for that.

Good thoughts bear good fruit, bad thoughts bear bad fruit.

For every man there exists a bait which he cannot resist swallowing.

The fact that the great scientist believed in flying machines was the one thing that encouraged us to begin our studies.

I can be changed by what happens to me. But I refuse to be reduced by it.

What's the world's greatest lie?... It's this: that at a certain point in our lives, we lose control of what's happening to us, and our lives become controlled by fate.

To attain the impossible, one must attempt the absurd.

Don't fear failure. Not failure, but low aim, is the crime. In great attempts it is glorious even to fail.