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.

I am the captain of my soul.

You don't need a weather man to know which way the wind blows

Freedom and independence form my character.

For every man there exists a bait which he cannot resist swallowing.

Out of intense complexities intense simplicities emerge.

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

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

Life is entrusted to man as a treasure which must not be squandered, as a talent which must be used well.

Do not look for approval except for the consciousness of doing your best.

Nothing is impossible, the word itself says 'I am possible'

A hero is no braver than an ordinary man, but he is brave five minutes longer.

My advice to other disabled people would be, concentrate on things your disability doesn't prevent you doing well, and don't regret the things it interferes with. Don't be disabled in spirit as well as physically.

It is only when the mind is free from the old that it meets everything anew, and in that there is joy.

The person who takes no chances generally has to take whatever is left when others are through choosing.

A man is but the product of his thoughts. What he thinks, he becomes.

Change the way you look at things and the things you look at change.

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

The unexamined life is not worth living.

Make today worth remembering.

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