一个人的工作不过是通过艺术的迂回，重新发现那两三个伟大而简单的形象，正是它们让他的心初次敞开。

The more you experience positive emotions, the more open you become. The more open you are, the more you see. The more you see, the more you can do. The more you can do, the more you can grow.

【译文】 叶公问子路：孔子是怎样的人，子路不回答。孔子说：“你怎么不说：他这个人啊，发愤学习就忘记吃饭，高兴起来就忘记了忧愁，不知道快要变老了等等？”

我经历过最寒冷的冬天是旧金山的夏天。

试图在不激发学生学习欲望的情况下进行教学的老师，就像在冷铁上敲打。

The only way to learn a new programming language is by writing programs in it.