This one in video form. It comes at the 2:45 mark of this 3:00 video over at Boston.com. Best part: totally unprompted. Just blurts it out when talking about stealing bases.
But watch the whole thing because at the beginning he talks about how great it was that he failed at the major league level last year. Really: “it’s great that I failed.” Which, while it’s clear what he’s actually getting at, is a surprisingly aggressive way to couch the whole “learn from adversity” concept.