音乐让我忘记时间，也让我记住时间。

The biggest risk is not taking any risk.

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.

Time is dead as long as it is being clicked off by little wheels; only when the clock stops does time come to life.

数学的力量在于它的普遍性和抽象性。