The opportunities in this world are as great as we have the imagination to see them... but we never get that view from the bottom of the nest.

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.

I've never heard of anyone stumbling on something sitting down.

There has never been any 30-hour week for men who had anything to do.

A man must have a certain amount of intelligent ignorance to get anywhere.

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.

Don't be afraid to stumble. Any inventor will tell you that you don't follow a plan far before you strike a snag. If, out of 100 ideas you get one that works, it's enough.