I don’t compete with others, I compete with myself.

I don’t think you can compare different eras. Every era has its own challenges and its own special things.

When you do something best in life, you don’t really want to give that up – and for me it’s tennis.

可持续性不是一种选择，而是任何负责任企业的唯一前进道路。

最强的企业是那些将废弃物视为设计缺陷的企业。

数学不是一项观赏性运动。

"The best way to predict the future is to shape it."

I have so much admiration for women who are married with children and work. I don’t know how you all do it.