对黑洞的研究彻底改变了我们对空间和时间的理解。
The study of black holes has revolutionized our understanding of space and time.
The future of liberal democracy depends on its ability to reform itself and address the legitimate grievances of those who feel left behind by globalization and technological change.
Spend each day trying to be a little wiser than you were when you woke up.
傲慢的人突然显达，上天也会惩罚他；疏漏放纵的人，努力求进取，上天也会宽容他的行为。
记忆是最残酷的暴君，也是最仁慈的救主。