"A book is a mirror: if an ape looks into it, an apostle is unlikely to look out."

Actions are right in proportion as they tend to promote happiness； wrong as they tend to produce the reverse of happiness.

免疫系统就像一把双刃剑；它可以对抗癌症，但也需要被控制。

正义的概念不是法律概念，而是道德概念。

The truth is often found in the margins.

Every failure in the lab brings us one step closer to success.