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

We cannot do everything at once, but we can do something at once.

And, when you want something, all the universe conspires in helping you to achieve it.

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

Perseverance and spirit have done wonders in all ages.

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.

A bird doesn't sing because it has an answer, it sings because it has a song.

You have to make the rules, not follow them.

To go too far is as bad as to fall short.

I would prefer even to fail with honor than win by cheating.

With realization of one's own potential and self-confidence in one's ability, one can build a better world.

Be more concerned with your character than your reputation, because your character is what you really are, while your reputation is merely what others think you are.

Today I shall behave, as if this is the day I will be remembered.

Imagination will often carry us to worlds that never were, but without it we go nowhere.

You must find the place inside yourself where nothing is impossible.

A thing worth having is a thing worth cheating for.

Man who stand on hill with mouth open will wait long time for roast duck to drop in.

Don't just read the easy stuff. You may be entertained by it, but you will never grow from it.

Our patience will achieve more than our force.

The best way out is always through.

You see things; you say, 'Why?' But I dream things that never were; and I say 'Why not?