1847 - 1931
Thomas Edison was an American inventor and businessman who is best known for his development of many devices that greatly influenced life around the world, including the phonograph and the electric light bulb. He held over 1,000 patents for his inventions and was one of the most prolific inventors in history.
Just because something doesn't do what you planned it to do doesn't mean it's useless.
Genius is one percent inspiration and ninety-nine percent perspiration.
There is no substitute for hard work.