Yes, he's extremely talented. Yes, he puts in the hours to his game and body that have allowed over two decades of excellence. But the core of his drive can be found in his words from Saturday night, when asked what a Masters win would mean: "Obviously I feel like I come at it from a point where I've achieved a lot in the game. I feel like, you know, I can call myself a major champion, which is nice, but my ultimate goal is to win all four. You know, if I look at where I finished in seconds in all the other ones, it's not unrealistic to think it's doable. Obviously I'm leaving it late, but that would be the ultimate goal for sure." That Rose, as he's on the wrong side of 40, has the goal of completing the slam despite only have one major, may seem absurd. But top athletes need that irrational confidence, and it may be what propels him to the green jacket.