Keep away from people who try to belittle your ambitions. Small people always do that, but the really great make you feel that you, too, can become great.

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

Faith is taking the first step even when you can't see the whole staircase.

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

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

One man with courage is a majority.

You can't live a perfect day until you do something for someone who will never be able to repay you.

When you're curious, you find lots of interesting things to do.

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

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

Plan your work - work your plan. Lack of system produces that 'I'm swamped' feeling.

Work gives you meaning and purpose and life is empty without it.

Great work requires great and persistent effort for a long time. … Character has to be established through a thousand stumbles.

When I'm inspired, I get excited because I can't wait to see what I'll come up with next.

The only way of discovering the limits of the possible is to venture a little way past them into the impossible.

If you can't you must, and if you must you can.

If you can't fly then run, if you can't run then walk, if you can't walk then crawl, but whatever you do you have to keep moving forward.

The greatest thing in the world is to know how to belong to oneself.

Look up at the stars and not down at your feet. Try to make sense of what you see, and wonder about what makes the universe exist. Be curious.

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

Man needs his difficulties because they are necessary to enjoy success.