To invent, you need a good imagination and a pile of junk.

I am much less interested in what is called God's word than in God's deeds. All bibles are man-made.

I know of over 3,000 ways [that] a light bulb does not work.

Of all my inventions, I liked the phonograph best

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.

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 will not say I failed 1000 times, I will say that I discovered there are 1000 ways that can cause failure