http://www.slate.com/articles/sports/sports_nut/2015/09/yogi_berra_quotes_how_a_false_narrative_from_joe_garagiola_came_to_dominate.html

Yogi Berra, the great New York Yankees catcher who died Tuesday at the age of 90, was, famously, a winner. He would have needed all of his fingers and three of his toes to fit all his World Series rings on at once. More than winning, though, Berra was famous for the things he said. Berra biographer Allen Barra described these famed Yogi-isms as “distilled bits of wisdom which, like good country songs and old John Wayne movies, get to the truth in a hurry.” But of course Yogi said it himself: “I really didn't say everything I said.” Many a line attributed to Berra either came from old jokes or appeared earlier than he could have coined them. (In at least two cases, Yogi-isms originally appeared in early-20^th-century New Yorker essays, including one by Dorothy Parker).