The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry.
可持续性不是一种风格，而是一种责任。
I want to leave a legacy that goes beyond tennis.
成功不是幸福的关键。幸福才是成功的关键。如果你热爱你所做的事情，你就会成功。
质量不是一种行为，而是一种习惯。
气候的变化不是一朝一夕的原因，而是逐渐积累的结果。
The more you explain your art, the less powerful it becomes.