By 1877, when he started his quest to make a commercially successful light, Edison was already well on his way to becoming known as “the Wizard of Menlo Park.” Edison was not a wholly attractive human being. He didn’t scruple to cheat or lie, and was prepared to steal patents or bribe journalists for favorable coverage. In the words of one of his contemporaries, he had “a vacuum where his conscience ought to be.” But he was enterprising and hardworking and a peerless organizer.
