不知其子视其友，不知其君视其左右。
不了解儿子就看和儿子交往的朋友，就清楚了；不了解君主就看看君主身边的人，就明白了。
I'm not a rapper, I'm a leader.
The only thing worse than being talked about is not being talked about.
"We are all in the gutter, but some of us are looking at the stars."
我喜欢把数学看作一种诗歌。
Every ton of coal we extract carries a responsibility—to our workers, communities, and the planet.