所有法律最初都是由习俗和民众信仰形成的，其次是通过法学——因此，在任何地方，都是由内在的、默默运作的力量所形成，而不是由立法者的任意意志所决定。

When I write songs, I often lose track of time.

The thing that we are trying to do at Facebook, is just help people connect and communicate more efficiently.

书籍是释放我们改变潜力的钥匙。