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.

Education is man's going forward from cocksure ignorance to thoughtful uncertainty.Where there is an open mind there will always be a frontier.

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

Action without intelligence is a form of insanity, but intelligence without action is the greatest form of stupidity in the world.

We have a lot of people revolutionizing the world because they've never had to present a working model.

We have reason not to be afraid of the machine, for there is always constructive change, the enemy of machines, making them change to fit new conditions.

Every time you tear a leaf off a calendar, you present a new place for new ideas and progress.