I always practice as I intend to play.

We're not perfect every time. We make mistakes just like everybody else. But, we stay on top of it, and we stay with it, and we make sure we get it right.

I never hit a shot, not even in practice, without having a very sharp, in-focus picture of it in my head. It's like a color movie. First I 'see' where I want it to finish, nice and white and sitting up high on the bright green grass. Then the scene quickly changes and I 'see' the ball going there: its path, trajectory, and shape, even its behavior on landing. Then there is this sort of fadeout, and the next scene shows me making the kind of swing that will turn the previous images to reality.

The most difficult thing for me is keeping yourself focused on what you're doing. As you go play, you try to get your focus and desire. You don't do it to the level you would do it if you wanted to win. You have to work at it and be on top of your game.

The worse you're performing, the more you must work mentally and emotionally. The greatest and toughest art in golf is "playing badly well." All the true greats have been masters at it.

At a certain point in the [golf] tournament, it becomes a match play event and becomes a match play event against who is on the leaderboard, so you have to know who is there to do what you're going to try to do.

Age doesn't make a difference either. Whether you're 20 or 70, you can still play together. There are so many different things you can do with golf that you can't do in other sports.