The key is to set realistic customer expectations, and then not to just meet them, but to exceed them — preferably in unexpected and helpful ways.

他把他的刀剑当作他的上帝。当他的刀剑胜利的时候他自己却失败了。

Sustainability is not an option; it's a necessity for any business that wants to thrive in the long term.

这是一首幽默的打油诗，调侃数学的复杂性。