"If you can’t fly, then run. If you can’t run, then walk. If you can’t walk, then crawl. But whatever you do, you have to keep moving forward."

"The past is always with us, and it shapes who we are and how we see the world."

Reality is a construction of the mind.

语言是人类拥有的最强大的武器。

学习数学的唯一方法就是做数学。