I say luck is when an opportunity comes along and you're prepared for it.

The most important property of a program is whether it accomplishes the intention of its user.

巫术并非源于对普遍力量的抽象概念，也不是错觉的结果；它是一种源于人类需求的制度。

写作不是为了取悦别人，而是为了发现自己。