变老的好处之一就是你可以畅所欲言而不必担心后果。

For those who do return back to the countryside, they find themselves very welcome locally, because with the knowledge, skills and networks they have learned in the cities, with the assistance of the Internet, they're able to create more jobs, upgrade local agriculture and create new business in the less developed market.

 The wise reflect on their thoughts; the foolish indulge in their indulgences.

创新的关键不仅在于找到答案，还在于提出正确的问题。

圆点无法独自存在，如同人类的存在。