如果我们不考虑长期影响，开采效率就毫无意义。
Efficiency in extraction is meaningless if we don't consider the long-term impact.
可持续性不是一种选择，而是煤炭行业的必需品。
量子场论的发展表明，真空并非空无一物，而是潜能的海洋。
对于人的责任，在于对待自己的本性，也同样适用于对待其他事物的本性。
It really matters whether people are working on generating clean energy or improving transportation or making the Internet work better and all those things. And small groups of people can have a really huge impact.
寻找一个对我而言是真理的真理，寻找一个我愿意为它而活、为它而死的理念。
The future belongs to those who give the next generation reason for hope.
文学的真正价值在于其揭示人类内心生活的能力。