You are not here merely to make a living. You are here in order to enable the world to live more amply, with greater vision, with a finer spirit of hope and achievement. You are here to enrich the world, and to impoverish yourself if you forget the errand.

I may not have gone where I intended to go, but I think I have ended up where I needed to be.

One person with a belief is equal to a force of ninety-nine who have only interests.

Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young.

You get in life what you have the courage to ask for.

There are only 3 colors, 10 digits, and 7 notes; its what we do with them that's important.

Life is like riding a bicycle. To keep your balance, you must keep moving.

It's kind of fun to do the impossible.

Status quo, you know, is Latin for 'the mess we're in'.

Courage is the thing. All goes if courage goes.

If the little bit you have is nothing special in itself, at least find a way of saying it that is a little bit special.

I do not want to die rusting, I prefer to burn out.

Be happy, but never satisfied.

I think nature's imagination Is so much greater than man's, she's never going to let us relax.

Make the most of yourself....for that is all there is of you.

The first rule is to keep an untroubled spirit. The second is to look things in the face and know them for what they are.

Defeat is not defeat unless accepted as a reality-in your own mind.

Freedom from the desire for an answer is essential to the understanding of a problem.

I'm not telling you it's going to be easy - I'm telling you it's going to be worth it.

You can chain me, you can torture me, you can even destroy this body, but you will never imprison my mind.

Don't ever take a fence down until you know why it was put up.