The challenge is to make the audience believe in the character, not in the actor.
我们有四千万个失败的理由,但没有一个借口。
君主所凭借着驱使臣下的,只有尚贤一种方法;臣下用来侍奉君主的,也只有仁义一条途径。 
There is no way you can live an adequate life without making mistakes.
The Langlands correspondence is not just a theorem but a guiding principle for future discoveries.