I will never be by violence constrained to do anything.

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

I don’t think we are going to become extinct. We are very clever and very resourceful.

The key to immortality is first living a life worth remembering.

He was a dreamer, a thinker, a speculative philosopher... or, as his wife would have it, an idiot.

Only those are fit to live who do not fear to die; and none are fit to die who have shrunk from the joy of life and the duty of life. Both life and death are parts of the same Great Adventure.

Lend yourself to others, but give yourself to yourself.

If you put off everything till you're sure of it, you'll never get anything done.

The great secret of true success, of true happiness, is this: the man or woman who asks for no return, the perfectly unselfish person, is the most successful.

Wealth is not about having a lot of money; it's about having a lot of options.

A superior man is modest in his speech, but exceeds in his actions.

Knowing what's right doesn't mean much unless you do what's right.

It's kind of fun to do the impossible.

Courage is the most important of all the virtues, because without courage you can't practice any other virtue consistently. You can practice any virtue erratically, but nothing consistently without courage.

Every nation has the right to demand proper treatment and no country should violate the territory of any other country.

The desire to reach for the stars is ambitious. The desire to reach hearts is wise.

You're off to Great Places! Today is your day! Your mountain is waiting, So... get on your way!

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

Waste no more time arguing about what a good man should be. Be one.

Every problem has in it the seeds of its own solution. If you don't have any problems, you don't get any seeds.

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