Ray Dalio, founder of Bridgewater Associates, the world’s largest hedge-fund firm, lives by a set of rules that, he’d be first to admit, aren’t for everyone. That’s perfectly OK with him. All Dalio wants is for people to try them on and see what fits, which led to his writing more than 550 pages of business, investing and life lessons in a book titled, simply, “Principles: Life and Work.” Part record, part reckoning, “Principles” landed with a splash a year ago, not surprisingly, given its author’s ability to influence financial markets with a cable television appearance or a tweet. But since the medium is the ... (full story)