The study of black holes has revolutionized our understanding of space and time.

Make no mistake about it: Computers process numbers - not symbols. We measure our understanding (and control) by the extent to which we can arithmetize an activity.

心有其理，理性不解。

最好的钢材不是在熔炉中制造的，而是通过团队合作和共同目标锻造的。