生活就像一辆十档变速自行车，我们有各种档位选择，很多人却忘了用。

循环经济原则可以将林业部门的废物转化为价值。

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。

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

我们观察到的不是自然本身，而是自然暴露于我们提问方法下的样子。

Never close your lips to those whom you have already opened your heart.

The best way to measure your investing success is not by whether you're beating the market but by whether you've put in place a financial plan and a behavioral discipline that are likely to get you where you want to go.