Nothing ever built arose to touch the skies unless some man dreamed that it should, some man believed that it could, and some man willed that it must.

Problems are the price of progress. Don't bring me anything but trouble. Good news weakens me.

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.

People think of the inventor as a screwball, but no one ever asks the inventor what he thinks of other people.

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 suffer not from overproduction but from undercirculation. You have heard of technocracy. I wish I had those fellows for my competitors. I'd like to take the automobile it is said they predicted could be made now that would last fifty years. Even if never used, this automobile would not be worth anything except to a junkman in ten years, because of the changes in men's tastes and ideas. This desire for change is an inherent quality in human nature, so that the present generation must not try to crystallize the needs of the future ones.

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