书籍是飞机，是火车，是道路。它们是目的地，也是旅程。它们是家。
"Books are the plane, and the train, and the road. They are the destination, and the journey. They are home."
计算学习理论中的挑战在于理解学习算法的能力和局限性。
Every word is a world.
The music is not in the notes, but in the silence between.
In your life there are a few places, or maybe only the one place, where something happened, and then there are all the other places.
倘若有人能指出你错了，你为何还要介意？
