石油开采的创新不是可选的,而是可持续发展的必要条件。
In computer science, we often deal with problems that are easy to state but hard to solve.
Today was good. Today was fun. Tomorrow is another one.
Physics is not just a science, it is a way of thinking about the world.
艺术中唯一的规则就是没有规则。
I'm not a saint, but I'm not a sinner either.
抛弃世俗的琐事,身体就不会劳累;遗忘人生的烦恼,精神就不会亏损。