数学的本质不是把简单的事情复杂化，而是把复杂的事情简单化。
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
"A good illustration should tell a story on its own, without the need for words."
感谢一位改变了你生活的老师。
最可持续的资源是人类的智慧。
I'm just a girl trying to find my place in the world.
