Resilience is built by learning from failures, not just celebrating successes.

"In tennis, like in life, you have to keep moving forward—one point at a time."

I'm not going to limit myself just because people won't accept the fact that I can do something else.

The chief beauty about time is that you cannot waste it in advance. The next year, the next day, the next hour are lying ready for you, as perfect, as unspoiled, as if you had never wasted or misapplied a single moment in all your life.

【译文】 孔子说：“陪君子说话要注意三种毛病：没到说的时候就说，叫做急躁；到该说的时候不说，叫做隐瞒；不顾对方的表情就说，叫做睁眼瞎。”

The choice for mankind lies between freedom and happiness and for the great bulk of mankind, happiness is better.