Be brave if you lose and meek if you win.
Go out and have fun. Golf is a game for everyone, not just for the talented few.
All seasoned players know, or at least have felt, that when you are playing your best, you are much the same as in a state of meditation. You are free of tension and chatter. You are concentrating on one thing. It is the ideal condition for good golf.
A good putter is a match for anyone. A bad putter is a match for no one.
Never try a shot you haven't practised.
Lessons are not to take the place of practice, but to make practice worthwhile.