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

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.

We have been measuring too much in terms of the dollar. What we should do is think in terms of useful materials-things that will be of value to us in our daily life.

This problem, too, will look simple after it is solved.

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

Inventing is a combination of brains and materials. The more brains you use, the less material you need.

The only time you mustn't fail is the last time you try.