—— 请按键盘 空白键 开始游戏 ——

Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country.
Markets are efficient enough that most investors will not outperform the market over the long term.
科学不仅是知识的学科,更是一种思维方式。
The past is a foreign country; they do things differently there.
我不知道什么更紧,是我们的牛仔裤还是我们的和声。