Here’s a neat little article on Warren Buffett’s willingness to learn from his mistakes.
 A key to investing well is a willingness to look stupid, Buffett says. “Most managers have very little incentive to make the intelligent-but-with-some-chance-of-looking-like-an-idiot decision,” Buffett wrote in 1984. Most would prefer “failing conventionally.”
He added: “Lemmings may have a rotten image, but no individual lemming has ever received bad press.”