一个好老师必须能够设身处地为那些觉得学习困难的人着想。
I don't have to prove anything to anyone. There's nothing to prove.
I've learned that you shouldn't go through life with a catcher's mitt on both hands; you need to be able to throw something back.
You have to be willing to fail, to be wrong, to keep pushing forward even when everyone tells you you're crazy.