Everything you can imagine is real.

Out of intense complexities intense simplicities emerge.

If I find 10,000 ways something won't work, I haven't failed. I am not discouraged, because every wrong attempt discarded is another step forward.

I believe that if you show people the problems and you show them the solutions they will be moved to act.

The only way of finding the limits of the possible is by going beyond them into the impossible.

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.

For a man who no longer has a homeland, writing becomes a place to live.

You'll never do a whole lot unless you're brave enough to try.

I'd rather be an optimist and a fool than a pessimist and right.

To myself I am only a child playing on the beach, while vast oceans of truth lie undiscovered before me.

The people who were trying to make this world worse are not taking the day off. Why should I?

Do not count your chickens before they are hatched.

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

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

I not only use all the brains that I have, but all that I can borrow.

We cannot direct the wind, but we can adjust the sails.

All the darkness in the world cannot extinguish the light of a single candle.

Be yourself, let you come through.

How long should you try? Until.

Failure is not our only punishment for laziness; there is also the success of others.

Diligence is the mother of good fortune. And idleness, its opposite, never brought a man to the goal of any of his best wishes.