Nothing ever built arose to touch the skies unless some man dreamed that it should, some man believed that it could, and some man willed that it must.

No one would have crossed the ocean if he could have gotten off the ship in the storm.

Our imagination is the only limit to what we can hope to have in the future.

Thinking is one thing no one has ever been able to tax.

Whenever you look at a piece of work and you think the fellow was crazy, then you want to pay some attention to that. One of you is likely to be, and you had better find out which one it is. It makes an awful lot of difference.

I don't want men of experience working for me. The experienced man is always telling me why something can't be done. The fellow who has not had any experience is so dumb he doesn't know a thing can't be done - and he goes ahead and does it.

An inventor fails 999 times, and if he succeeds once, he's in. He treats his failures simply as practice shots.