我扮演的每一个角色都是我的一部分，我在每一个角色中都留下了一部分自己。
Every role I take on is a piece of me, and I leave a piece of me in every role.
You see, but you do not observe.
玩耍是童年的语言，书籍也应该用这种语言表达。
"The boundary between the quantum and classical worlds is not as clear as we once thought."
学习数学的最好方法就是做数学。