Search others for their virtue, and yourself for your vices.

I just invent, then wait until man comes around to needing what I've invented.

Television is the third parent.

There is only one revolution tolerable to all men, all societies, all political systems: Revolution by design and invention.

Whatever humans have learned had to be learned as a consequence only of trial and error experience. Humans have learned only through mistakes.

I am deeply impressed with the designer of the universe; I am confident I couldnt have done anywhere near such a good job.

By the time you are 88 years old, you "have consumed 300 tons of food, air and water."