It is always good to have a problem that you cannot solve. It means you have something to work on.
有一个你无法解决的问题总是好的。这意味着你有事情要做。
I don't stop when I'm tired. I stop when I'm done.
法律权利不仅仅是法律义务的影子。
可持续发展不是一种选择;它是我们对后代的责任。
The study of Galois representations is a journey into the hidden symmetries of mathematics.
手会记住头脑忘记的东西。