解释：使用毒性大的药物治疗疾病时，病情十成中只能去掉六成就要停药，以免伤害正气。

Even in the tropics it gets colder at night than you think. Pack warmly.

The greatest human quest is to know what one must do in order to become a human being.

"The truth is rarely pure and never simple."

我不是给予者，我是索取者。

The person who is slowest in making a promise is the most faithful in performance of it.

写作是理解混乱的方式。

过去是一个异国他乡；他们做事的方式不同。