如果不是我,那会是谁?如果不是现在,那是什么时候?
"When you do something best in life, you don’t really want to give that up – and for me it’s tennis."
I’m not a guy that’s going to let my family down.
怎么会有不用同道的人而只用与自己意见相同的人的道理呢? 
I don’t think about the past or the future. I focus on the present.