子曰：“君子坦荡荡，小人长戚戚。”
【译文】 孔子说：“君子总是胸怀宽广，小人总是忧愁悲伤。”
Legal obligations are not merely moral obligations backed by sanctions.
What can be said at all can be said clearly, and what we cannot talk about we must pass over in silence.
数学让我们看到支配周围世界的隐藏结构。
I’m not afraid to fail. I’m not afraid to fall. I’m not afraid to be criticized.
时间不会治愈伤口，而是将它们变成定义我们的伤疤。
The future of coal depends on our ability to innovate and reduce its environmental impact.
搭便车的时候，你得看上去像一个你自己也愿意接上车的人。
