现代密码学的挑战不仅是确保通信安全，而且要以既高效又可扩展的方式实现。

当我们谈论一个词的“意义”时，首先我们在谈论一种特定的行为。

Make-up can only make you look pretty on the outside but it doesn’t help if you're ugly on the inside. Unless you eat the make-up.

We are communal histories, communal books. We are not owned or monogamous in our taste or experience.

成功不是一种权利，必须通过努力获得。

我走了这么远，不只是为了走到这里。