Always make a total effort, even when the odds are against you.

Many people don't know that I experienced a blood clot caused by deep vein thrombosis, or DVT, which is when a blood clot forms in a deep vein in the body, often the leg or thigh. I'm fortunate that my DVT was diagnosed and treated before it led to something even more serious and that's why I encourage people to talk to their doctor if they think something is wrong. I've teamed up with Janssen Pharmaceuticals to raise awareness about blood clot prevention and treatment.

I have won the Australian, I won the British, all PGA championships, but I haven't won the PGA championship.

If you are really serious about playing golf and playing good golf, stick to the basic fundamentals. Sure, there's going to be a little change here and a change there, but you don't want to make them. You want to stick to the things that you started with, and you learned, and you know how to apply them.

There's no question that the galleries still like to see birdies and eagles. If you take them all away, it takes some of the dramatics, the excitement of a golf tournament and we [people] don't want to do that.

Frankly, I'm not much for funerals unless it's absolutely an obligation. I don't feel it serves much of a purpose to go and see my friends just lying there, dead. I try to pay my respects to my friends when they're alive.

Had I not become a professional golfer, I think I would have pursued some type of career in aviation.