抽象是管理大型软件系统复杂性的关键。
Abstraction is the key to managing complexity in large software systems.
Competitive strategy is about being different. It means deliberately choosing a different set of activities to deliver a unique mix of value.
大自然为所有活动都观察了合适的时间。
书籍是反映我们潜力的镜子。
Start by doing what's necessary; then do what's possible; and suddenly you are doing the impossible.
从做必要的事情开始；然后做可能的事情；突然间你就在做不可能的事情了。
