有时候遇到急切之下弄不明白的事情，应当适当宽缓一下，或许自然而然就真相大白了，不要操之过急，那样会使当事人十分恼怒，反而增加了事情的复杂性；有的人急切之下任你怎么劝都不听从，不妨随他的便，不去劝他，他或许自己慢慢就会悔悟，不必要采用强制手段逼迫他听从，那样只能激发他的逆反心理，使他更加冥顽不化。

The discovery of topological insulators has opened up a new frontier in condensed matter physics, where the interplay between topology and symmetry leads to novel quantum states of matter.

I needed a drink, I needed a lot of life insurance, I needed a vacation, I needed a home in the country. What I had was a coat, a hat and a gun.