We will make electricity so cheap that only the rich will burn candles.

TO do much clear thinking a man must arrange for regular periods of solitude when he can concentrate and indulge his imagination without distraction.

There is no substitute for hard work.

Time is really the only capital that any human being has, and the only thing he can't afford to lose.

I find out what the world needs. Then, I go ahead and invent it.

What you are will show in what you do.

I never did anything worth doing by accident, nor did any of my inventions come by accident; they came by work.

If we did all the things we are capable of, we would literally astound ourselves.

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

Being busy does not always mean real work. The object of all work is production or accomplishment and to either of these ends there must be forethought, system, planning, intelligence, and honest purpose, as well as perspiration. Seeming to do is not doing.