The dignity of movement of the iceberg is due to only one-eighth of it being above water. -Ernest Hemmingway
any framework ... will often only take you 90% of the way you need to go. After that you start fighting the framework -Bill Venners （评论：O-O就这德性，不是吗？“Open-closed”，到底能closed到什么程度？A leaky abstraction。）
