The challenge of our time is to build an economy that works for everyone, not just the privileged few.
我们时代的挑战是建立一个为所有人服务的经济，而不仅仅是少数特权阶层。
我只和自己竞争，不和别人竞争。
The vision of a champion is someone who is bent over, drenched in sweat, at the point of exhaustion when no one else is watching.
理论物理学实际上是哲学。
可持续性不是一种选择，而是我们对后代的责任。