Most change initiatives either fail or fall far short of original (perhaps unrealistic) expectations. More often than not, resistance is cultural in nature, the result of what James O'Toole so aptly characterizes as "the ideology of comfort and the tyranny of custom."

I wasn't this nervous playing golf when I was drinking. It's the first tournament I've won on the PGA Tour in a sober manner, so it's a great feeling knowing I can do it sober. I don't think two years ago I could have pulled this off.

[The greatest barriers to forming alliances] are not figuring out what would make others want to join with you. Assuming that what excites you excites others. Spend more time assuming people have good reasons for what they do or say and then figure out those good reasons.

Nobody can know what's in my heart. Nobody can know what I'm thinking. I know what I've got to do.

I will just put four or five extra packs of cigarettes in my bag and I will be fine.

He's tough (Tiger Woods). I wish I was that tough when I was his age.

I know there's a lot of guys who would love to see me fail. Well, good. Let 'em. I'm glad.