A sound mind in a sound body, is a short, but full description of a happy state in this World: he that has these two, has little more to wish for; and he that wants either of them, will be little the better for anything else. Men’s happiness or misery is most part of their own making. He, whose mind directs not wisely, will never take the right way; and he, whose body is crazy and feeble, will never be able to advance in it.
荒野是一个极端的地方。要生存，你必须找到平衡。
The core of Pinduoduo is "group buying," allowing users to participate in shopping through social means.