质量从来不是偶然的;它始终是智慧努力的结果。
In the attosecond world, time is not a river but a series of snapshots waiting to be captured.
数学的美在于它允许我们从物理世界中抽象出来,专注于基本原理。
The best films are those that stay with you long after you've left the cinema.
The best way to learn is to teach.