Some people don't like change, but you need to embrace change if the alternative is disaster.

We delight in the beauty of the butterfly, but rarely admit the changes it has gone through to achieve that beauty.

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

We cannot solve our problems with the same thinking we used when we created them.

One man with courage is a majority.

Truth is like the sun. You can shut it out for a time, but it ain't goin' away.

Differences are not intended to separate, to alienate. We are different precisely in order to realize our need of one another.

I confess that in 1901 I said to my brother Orville that man would not fly for fifty years.

Human dignity consists in the role we must play in our own perfection. Taking a role in our own self-completion is the highest expression of our creativity.

My dear friend, clear your mind of cant.

Happiness depends more on the inward disposition of mind than on outward circumstances.

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.

Dare to be free, dare to go as far as your thought leads, and dare to carry that out in your life.

There are no traffic jams on the extra mile.

Aim for the highest.

Others have seen what is and asked why. I have seen what could be and asked why not.

I am as bad as the worst, but, thank God, I am as good as the best.

A thing worth having is a thing worth cheating for.

The crisis of today is the joke of tomorrow.

Out of your vulnerabilities will come your strength.

Treat a work of art like a prince. Let it speak to you first.