Thomas Edison

I have friends in both camps. I am not a partisan. I am an inventor. I am interested in the best system.

I don't believe in anything I can't prove.

The phonograph is not of any commercial value.

The electric light has caused me the most trouble.

I have always been a man of science, and I have always believed that the truth will ultimately prevail.

I am not an inventor. I am an explorer.

I don't care so much for the money as I do for the fun of it.

I am a firm believer in the theory that you can do anything you want to do if you are willing to work hard enough to get it.

I never had a policy; I have just tried to do my very best each and every day.

It is not the amount of knowledge that makes a man wise, but the amount of knowledge that he uses.

I am not an inventor, I am a discoverer.

The greatest invention in the world is the mind of man.

The future is not something we enter. The future is something we create.

I have never seen a man who was a failure who was not a quitter.

The greatest weakness of most humans is their hesitancy to tell others how much they love them while they're still alive.

I have always found that the best way to make a friend is to be one.

The only thing that stands between a man and what he wants from life is often merely the will to try it and the faith to believe that it is possible.

The greatest discovery of all time is that a person can change his future by merely changing his attitude.

Hell, there are no rules here – we're trying to accomplish something.

Your worth consists in what you are and not in what you have.