Our frustration is greater when we have much and want more than when we have nothing and want some. We are less dissatisfied when we lack many things than when we seem to lack but one thing.

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.

To live is to betray, to betray is to live.

爱就是爱去爱爱。

The act of painting is an act of love.

用我们的教学方法，导师教得少，但却观察得多。