孤独不是缺乏陪伴，而是缺乏目的。

陈述是传达信息的手段，承诺是作出承诺的手段。

The core of social products is to connect people, not simply transmit information.

A building should not shout; it should whisper to the people who use it.

【释义】多做好人多做善事使人快乐，做坏事有恶行罪责难逃。