Failure is the most effective technique to optimize strategic planning, implementation and processes.

Anything that won't sell, I don't want to invent. Its sale is proof of utility, and utility is success.

Oh these mathematicians make me tired! When you ask them to work out a sum they take a piece of paper, cover it with rows of A's, B's, and X's and Y's ... scatter a mess of flyspecks over them, and then give you an answer that's all wrong!

I never pick up an item without thinking of how I might improve it.

The United States, and other advanced nations, will someday be able to produce instruments of death so terrible the world will be in abject terror of itself and its ability to end civilization.... Such war-making weapons should be developed - but only for purposes of discovery and experimentation

Genius is 1 percent inspiration, 99 percent perspiration.

Religion is all bunk.