—— 请按键盘 空白键 开始游戏 ——

现在是去创造一些东西的最好时机。未来 20 年最伟大、最酷的发明都还没有出现。你并没有迟到。
This is the best time ever to make something. None of the greatest, coolest creations 20 years from now have been invented yet. You are not late.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
The writer is a person who writes, and the reader is a person who reads.