—— 请按键盘 空白键 开始游戏 ——

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
The more you know who you are, and what you want, the less you let things upset you.
Never stop questioning how things can be improved.
云计算行业最危险的事情就是停止学习。