世界是残酷的,但它也是美丽的。
The world is a cruel place, but it is also beautiful.
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.
仅仅知道如何使用工具是不够的;还必须了解它们何时适用。
I sing not because I am blind, but because I have a voice.