家并不总是一个地方；有时是那些让你感到归属的人。

Civilization is a stream with banks. The stream is sometimes filled with blood from people killing, stealing, shouting and doing the things historians usually record, while on the banks, unnoticed, people build homes, make love, raise children, sing songs, write poetry and even whittle statues. The story of civilization is the story of what happened on the banks.

What I’ve achieved in tennis is great, but who I am as a person is more important.

译文：有真才实学的人往往深藏不露，懂得韬光养晦，如同那未经打磨雕琢的美玉一般，虽不炫目，但质朴无华，日久自会彰显出光彩。读书学习一定不能间断，就像那连绵不断的流水和行云一般，每天都会前进而不能停下脚步。赏析：有才学的人值得敬佩和学习，但不能恃才傲物，骄横跋扈，要做德才兼备的读书人。读书最忌断断续续，浅尝辄止，读书学习要守得住寂寞。学海无涯，学无止境，锲而不舍，方能学有所成。

"I love the challenge of playing against the best players in the world."