I have not failed 10,000 times. I have succeeded in proving that those 10,000 ways will not work.

Fooling around with alternating currents is just a waste of time. Nobody will use it, ever. It's too dangerous . . . it could kill a man as quick as a bolt of lightning. Direct current is safe.

I owe my success to the fact that I never had a clock in my workroom. Seventy-five of us worked twenty hours every day and slept only four hours - and thrived on it.

For faith, as well intentioned as it may be, must be built on facts, not fiction - faith in fiction is a damnable false hope.

We are like tenant farmers chopping down the fence around our house for fuel when we should be using Nature's inexhaustible sources of energy - sun, wind and tide. ... I'd put my money on the sun and solar energy. What a source of power! I hope we don't have to wait until oil and coal run out before we tackle that.

Let the public throw bouquets to the inventors and in time we will all be happy.

I never quit until I get what I want.