OMAHA, Neb. — The advice that legendary investor Warren Buffett offered on investing and life over the years helped earn him legions of followers who eagerly read his annual letters and filled an arena in Omaha every year to listen to him at Berkshire Hathaway's annual meetings. Buffett's last day as CEO is Wednesday after six decades of building up the Berkshire conglomerate. He'll remain chairman, but Greg Abel will take over leadership. Here's a collection of some of Buffett's most famous quotes from over the years: ___ “Be fearful when others are greedy, and greedy when others are fearful.” That's how Buffett summed up his investing approach of buying out-of-favor stocks and companies when they were selling for less than he estimated they were worth. He also urged investors to stick with industries they understand that fall within their “circle of competence” and offered this classic maxim: “Rule No. 1: Never lose money. Rule No. 2: Never forget Rule No. 1.” ___ “After they first obey all rules, I then want employees to ask themselves whether they are willing to have any