Trade between two countries can be mutually beneficial, even if one of them is less efficient in the production of all commodities.

大胆梦想，从小事做起。

The only purpose for which power can be rightfully exercised over any member of a civilized community， against his will， is to prevent harm to others.

最可持续的包装是那些能够被无限重复使用和回收的包装。