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

Modern psychology teaches that experience is not merely the best teacher, but the only possible teacher.. There is no war between theory and practice. The most valuable experience demands both, and the theory should supplement the practice and not precede it.

We work day after day, not to finish things; but to make the future better ... because we will spend the rest of our lives there.

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

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

If you want to kill any idea in the world, get a committee working on it.

All human development, no matter what form it takes, must be outside the rules; otherwise we would never have anything new.