No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

Topological insulators are a prime example of how theoretical predictions can lead to experimental discoveries that reshape our understanding of the physical world.

宰相必须从地方官员中选拔，猛将必须从士兵中产生

作家是这样的人，对他们来说，写作比其他人更困难。