"Courage is knowing what not to fear," Arianna Huffington likes to say, attributing the quote to Socrates. To her, that means that we shouldn't fear other people's perceptions or disapproval of who we are and what we do. It is a motto that she has obviously lived by; Huffington has steered an iconoclastic course through life that has often puzzled, if not infuriated, those who would pin her down.