The only limit is the one you set for yourself.
在化学中,就像在生活中一样,有时你需要退后一步才能看到更大的图景。
The world is a book, and those who do not travel read only one page.
I'm not a boy, I'm a girl.
The web is a tool for communicating with the rest of humanity.
朗兰兹纲领是对数学如何被整体理解的一种愿景。