What you do today can improve all your tomorrows.
By failing to prepare, you are preparing to fail.
If you've got a talent, protect it.
Know or listen to those who know.
Be kind whenever possible. It is always possible.
Well done is better than well said.
If you can dream it, you can do it.
Always desire to learn something useful.
To be a good loser is to learn how to win.
Never complain and never explain.
It's very expensive to be a professional tennis player with all the travel and the flights and the hotels and everything.