Thomas Edison is one of the greatest inventors of all time. He holds more than 1,000 invention patents to his credit, having founded one of the biggest electric companies in the world (which is now a core part of General Electric or GE). But did you know that he had only a few months of formal schooling and had to drop out because he was unable to cope? His mother sowed the seed of Personal Development into him, and without even going back to school he went on to spearhead the development of many of the innovations (especially inventions) that have blessed our lives. Including the light bulb, the phonograph, movie camera, and several others.