我们不仅仅是开采煤炭,我们在为国家提供动力。
I think that the thing that makes mathematics worthwhile is the fact that it has this incredible structure that you can explore and discover.
我认为无畏不是没有恐惧,而是即使害怕也要勇往直前。
艺术的本质功能是道德性的。