I Had a Bad Tooth我有一颗坏牙

THE BOOK

Zhu Xi

There lies a glassy oblong pool，

Where light and shade pursue their course.

How can it be so clear and cool？

For water fresh comes from its source.

（Translated by Xu Yuanchong）

观书有感

〔宋〕朱熹

半亩方塘一鉴开，

天光云影共徘徊。

问渠那得清如许？

为有源头活水来。

（许渊冲／译）