Earl Nightingale's Greatest Discovery will help you acknowledge your own potential and will inspire you to take a step ahead of the crowd and onto a lifetime of success. -- Ken Blanchard, Ph. D., Co-author, The One Minute Manager. ******* About the Author: Earl Nightingale founded the personal development industry with the writing and recording of an essay entitled, The Strangest Secret, earning a Gold Record for the first recording of it's kind. Nightingale formed the NIGHTINGALE-CONANT CORP of Chicago, Il. Nightingale enjoyed a lifetime career in radio and was an internationally acclaimed speaker.