Feeling tired should almost never be an excuse, because your body has huge reserves of energy. But if you eat badly, stay out late, drink too much, and so on, you'll pay a price on the course.

You can talk about strategy all you want, but what really matters is resilience. On the last nine holes of the Masters or the Open, there's going to come at least one point when you want to throw yourself in the nearest trash can and disappear. You know you can't hide. It's like you're walking down the fairway naked. The gallery knows what you've done, every other player knows and worst of all, you know. That's when you find out if you're a real competitor.

Feeling tired should almost never be an excuse, because your body has huge reserves of energy. But if you eat badly, stay out late, drink too much, and so on, you'll pay a price on the course.

I never underestimate my opponent, but I never underestimate my talents.

The USGA doesn't want to recognize the fact that today's players are better than ever. They seem willing to do anything to prevent us from shooting scores that would make us appear better than the great names of the past.

Do I want to tackle a 230-pound guy who's running like a deer? Heavens no, no one in their right mind would. But there is something that drives me and compels me to stick my head in there and give it my best shot.

My dad was a good athlete. My mom had longevity. There were some athletic genes that certainly got passed down.