Danh ngôn của Stan Wawrinka (Sứ mệnh: 1)

As a tennis player, you have to get used to losing every week. Unless you win the tournament, you always go home as a loser. But you have to take the positive out of a defeat and go back to work. Improve to fail better.
As far as fitness is concerned, you have to enjoy it, do good exercises, and integrate them into your tennis practice. The preparation for the season is as crucial as doing good blocks when switching from one surface to another.
Every minute counts. Being on time or not can mean the difference of a win or a loss and even of something positive or negative happening in life.