In the early 1970s, he was interviewed for the Bell company magagine Bellcore and was asked what he'd have done differently had he known in the early days of his career what he knew at the end of it.
*Well, we should have listened to Tesla,* he said. *We'd be living in a completely different world....*
I've heard that sentiment echoed in many converstation ranging from capital punishment (the electric chair) to conservation (power generation.) Much of the world we live in, is the result of the fact that Edison was a better PR man...not a better inventor.