If you can dream it, you can do it.
Begin to be now what you will be hereafter.
To be a good loser is to learn how to win.
If you think you can do it, you can.
Never complain and never explain.
To know oneself, one should assert oneself.
If you're going through hell, keep going.
Well done is better than well said.
Wherever you are - be all there.
The dog that trots about finds a bone.
Seems like most of the kids today are into other sports other than tennis.