I keep thinking about this river somewhere, with the water moving really fast. And these two people in the water, trying to hold onto each other, holding on as hard as they can, but in the end it’s just too much. The current’s too strong. They’ve got to let go, drift apart.

You must allow me to tell you how ardently I admire and love you.

A wise man is superior to any insults which can be put upon him, and the best reply to unseemly behavior is patience and moderation.

追求知识的旅程永无止境，每一个发现都为新的问题打开了大门。

你能给孩子最好的礼物是责任的根和独立的翅膀。

Coal will remain a vital energy source, but only if we evolve with the times.