Hofstadter's Law: It always takes longer than you expect, even when you take into account Hofstadter's Law.

Hofstadter's Law: It always takes longer than you expect, even when you take into account Hofstadter's Law.

霍夫斯塔德定律:即使你考虑到霍夫斯塔德定律，它所花费的时间也总是比你预期的要长。

-- Douglas Hofstadter 侯世达