My success is due more to my ability to work continuously on one thing without stopping than to any other single quality.

When down in the mouth, remember Jonah. He came out all right.

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.

I never perfected an invention that I did not think about in terms of the service it might give others... I find out what the world needs, then I proceed to invent.

When we learn how to store electricity, we will cease being apes ourselves; until then we are tailless orangutans. You see, we should utilize natural forces and thus get all of our power. Sunshine is a form of energy, and the winds and the tides are manifestations of energy. Do we use them? Oh, no! We burn up wood and coal, as renters burn up the front fence for fuel. We live like squatters, not as if we owned the property.

Radio is just a fashion contrivance that will soon die out. It is obvious that there never will be invented a proper receiver!

When you have exhausted all possibilities, remember this - you haven't.