所有模型都是错误的，但有些是有用的。
品质是企业的生命线，没有品质就没有市场。
不确定性不能成为不作为的借口。
Peace if possible, truth at all costs.
The only way to learn a new programming language is by writing programs in it.
世界上充满了显而易见的事情，却没有人注意到。
The moment you stop to think about whether you love someone, you've already stopped loving that person forever.