I'll start this with a few of my favorites:
"Through years of experience, I have found that air offers less resistance than dirt". Jack Nicklaus, after teeing a ball exceedingly high
"Dividing the swing into its parts is like dissecting a cat. You'll have blood and guts and bones all over the place. But you won't have a cat." Ernest Jones
"Golf is the most fun you can have without taking your clothes off." Chi Chi Rodriguez
"I'd like to see the fairways more narrow. Then everybody would have to play from the rough, not just me." Seve Ballesteros
