最难的事情是变得简单。

Poetry must always have a moral purpose; it should instruct while it delights.

I guess Lieutenant Dan figured there's some things you just can't change. He didn't want to be called crippled, just like I didn't want to be called stupid.

The elements of consciousness are the irreducible components of mental life.

科学的美丽在于它不断发展和挑战我们对世界的理解的能力。

我们教授一门学科不是为了培养关于该学科的小型活图书馆，而是让学生自己学会数学思考。

当语言变得苍白无力，音乐就开始诉说。