Find something that you're really interested in doing in your life. Pursue it, set goals, and commit yourself to excellence. Do the best you can.
Competitive toughness is an acquired skill and not an inherited gift.
You pay a price for everything in life.
Ninety percent of my game is mental. It's my concentration that has gotten me this far.
Whatever your goal in life, be proud of every day that you are able to work in that direction.
Relationships are give-and-take, and when you're a tennis player, you're certainly not giving. You have to be self-absorbed. It has to be about you.