凡其为此物也,无不加用而为者,是故用财不费,民德不劳,其兴利多矣。
凡是圣人制造的这些东西,无一不是有益于实用才去做的,所以使用财物不浪费,民众能够不劳苦,他兴起的利益太多了。
美人送我一把金错刀，我拿什么来报答她呢？就用琼英美玉报答吧。道路太远我徘徊不安。为何不能断绝思念呢，总是让自己心意烦乱？
物理学中的每一个发现都是向理解宇宙宏伟设计迈出的一步。
The power of words is not in their loudness, but in their ability to resonate deeply within the hearts of readers.
Geometry is not just about shapes; it is about understanding the space we live in and the relationships within it.
战略的核心包含三个要素：诊断、指导方针和连贯的行动。