注释你的代码 Commenting your code
ref : http://mattdturner.com/wordpress/2011/04/top-10-funny-programming-jokes-and-quotes/
有的时候注释你的代码就像清洁你的卫生间一样，即使你重来不想打扫。
但是你或者客人看到干净的卫生间，心情才是舒适的。
（即使是你本人写的代码，两个月之后，和别人写的没有太多区别）
“Commenting your code is like cleaning your bathroom — you never want to do it, but it really does create a more pleasant experience for you and your guests.”
(Ryan Campbell)
