一本儿童书是他们参观的第一个艺术画廊。

The universe is a book written in the language of mathematics, and physics is the key to deciphering its pages.

如果你在小事上无原则，那么大事上一样没有原则。

Trade between two countries can be mutually beneficial, even if one of them is less efficient in the production of all commodities.

耐心是一种美德，我正在学习耐心。这是一个艰难的课程。

我不是来讨人喜欢的，我是来做自己的。