可持续性必须有利可图，否则它就无法持续。
Happiness is secured through virtue； it is a good attained by man's own will.
Innovation is the key to the continued growth and success of the Internet.
真正的自由来自心灵的解放。
The most important part of teaching is to teach what it is to know.
It is not the young people that degenerate,they are not spoiled till those of mature age are already sunk into corruption.
