让自己振作起来的最好方式是尝试让别人振作起来。
The best way to cheer yourself up is to try to cheer somebody else up.
The discovery of topological insulators has opened up a new frontier in condensed matter physics, where the interplay of symmetry and topology leads to novel quantum states of matter.
教育者有责任不保持中立。
实现明天理想的唯一障碍是今天的疑虑。
The salvation of the world is in man's suffering.