Personally, I enjoy working about 18 hours a day. Besides the short catnaps I take each day, I average about four to five hours of sleep per night.

I have better use for my brain than to poison it with alcohol. To put alcohol in the human brain is like putting sand in the bearings of an engine.

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.

There is great value in disaster. All our mistakes are burned up. Thank God we can start a new.

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

I have determined that there is no market for talking pictures

Because ideas have to be original only with regard to their adaptation to the problem at hand, I am always extremely interested in how others have used used them.