You need a little bit of insanity to do great things.

There is no greater agony than bearing an untold story inside you.

A man may die, nations may rise and fall, but an idea lives on.

Find out who you are and do it on purpose.

We should not give up and we should not allow the problem to defeat us.

I am not what happened to me, I am what I choose to become.

If you can dream it, you can do it. Always remember that this whole thing was started with a dream and a mouse.

When you believe in a thing, believe in it all the way, implicitly and unquestionably.

I wouldn't say I was the best manager in the business. But I was in the top one.

Change will not come if we wait for some other person, or if we wait for some other time. We are the ones we've been waiting for. We are the change that we seek.

If you fell down yesterday, stand up today.

People throw stones at you and you convert them into milestones.

My optimism wears heavy boots and is loud.

Memories of our lives, of our works and our deeds will continue in others.

Some people regard discipline as a chore. For me, it is a kind of order that sets me free to fly.

What does not destroy me, makes me strong.

The number one problem that keeps people from winning in the United States today is lack of belief in themselves.

The secret of health for both mind and body is not to mourn for the past, nor to worry about the future, but to live the present moment wisely and earnestly.

A sudden dart when a little over a hundred feet from the end of the track, or a little over 120 feet from the point at which it rose into the air, ended the flight.

I can never stand still. I must explore and experiment. I am never satisfied with my work. I resent the limitations of my own imagination.

United we stand; divided we fall.