—— 请按键盘 空白键 开始游戏 ——

数学的美在于它是永恒的,它不会改变。
The beauty of mathematics is that it is eternal, it doesn't change.
I've learned that you shouldn't go through life with a catcher's mitt on both hands; you need to be able to throw something back.
The spirit of science is the spirit of seeking truth and being pragmatic.
可持续性不是成本——而是对韧性和长期增长的投资。