—— 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.
在经济学中,就像在生活中一样,答案往往比最初看起来更加微妙。
Never stop learning—the moment you think you know everything is the moment you start falling behind.
最好的科学不是来自随波逐流,而是来自追求你的好奇心。
Opportunities don’t happen; you create them.
互联网时代,速度就是生命。