实现明天的唯一限制是我们今天的疑虑。
孔子说：“花言巧语、满脸堆笑的人，很少有仁爱之心。”
I was looking for the key for years, but the door was always open.
In international trade, a country should specialize in the production of goods for which it has a comparative advantage, and trade with other nations to maximize overall economic welfare.
Experience is the name everyone gives to their mistakes.
我们开采的每一吨煤炭都承载着同等重量的责任。