The Wright brothers flew right through the smoke screen of impossibility.

Every honest researcher I know admits he's just a professional amateur. He's doing whatever he's doing for the first time. That makes him an amateur. He has sense enough to know that he's going to have a lot of trouble, so that makes him a professional.

Every father should remember one day his son will follow his example, not his advice.

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

The future can be anything we want it to be, providing we have the faith and that we realize that peace, no less than war, required blood and sweat and tears.

The typical eye sees the ten per cent bad of an idea and overlooks the ninety per cent good.

I object to people running down the future. I am going to live all the rest of my life there.