Every life is its own excuse for being.

The wind carries the seeds of the future, and the past is the soil in which they grow.

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.

我们民主的最大祝福是自由。但归根结底，我们唯一的自由是自律的自由。

我由衷地高兴我的任期即将结束。我将很快不再是仆人，而将成为主权者。