To be a good loser is to learn how to win.
It's always too early to quit.
Well done is better than well said.
The dog that trots about finds a bone.
Never complain and never explain.
If you think you can do it, you can.
The wise does at once what the fool does at last.
Always desire to learn something useful.
Be kind whenever possible. It is always possible.
Know or listen to those who know.
When I tried to play something and screwed up, I'd hear some other note that would come into play. Then I started trying different things to find the beauty in it.
The worst advice I ever received from my dad was to play by the book.