The Globe and Mail reports in its Tuesday edition that Warren Buffett's final letter to Berkshire Hathaway shareholders last week was deeply personal, transparent, self-reflective and newsy. The Globe's Gus Carlson writes that the letter was unrushed, witty, self-deprecating, a bit wandering in places, but completely unabashed in its quirkiness. Artificial intelligence could never have created such a gem. Mr. Buffett, 95, has earned the latitude to be sentimental. After all, he is one of the world's wealthiest people, with an estimated net worth of about $160-billion (U.S.), according to Forbes. He did it by unapologetically dancing to his own drumbeat. In a culture of excess and narcissism, he made plainness and nerdiness cool. He has lived in the same modest house his entire adult life. As well, he aggressively resisted any temptation to move to the traditional power centres of the country, choosing instead to stay in the unlikely hub of Omaha, Neb., about as far from Wall Street and Silicon Valley as you can get. His strategy was, not surprisingly, plain and simple, too: invest for the long term in companies you know. Mr. Carlson says Mr. Buffett's letter engenders trust and confidence in a world of complexity.