愚公移山
从前，有位老人叫“愚公”，快九十岁了。 他家门前有两座大山。愚公和家人出门做事很不方便。 有一天，愚公叫来全家大小，对他们说：“这两座大山在门前很不方便，我想把它搬走。”
第二天，愚公就带着一家人挖山了。
这件事给一个叫智叟的知道了，他想，谁听说过搬山的事啊！觉得很可笑，就对愚公说，“老愚公呀，老愚公，你这么大年纪了，砍柴都够累的了，怎么来搬这样的山呀？”
愚公听了，哈哈大笑，回答说：“没错，我是老了，可是我死了以后还有儿子，儿子死了，又有孙子，子子孙孙，一直挖下去。可是这两座大山呢？不会越来越高。”
成语 Chéngyǔ，similar to English idiom, is a word group or a phrase which is established through usage and practice. Unlike English idiom, a Chéngyǔ is often made of a fixed number of Chinese characters, and most Chéngyǔ (98%) have four characters. Chéngyǔ often contain literary allusions which were derived from analogy or historical stories. The meaning of a Chéngyǔ is often much more difficult to derive from its constituents than an average English idiom. While some modern Chéngyǔ have a direct literal translation in other languages, many Chéngyǔ do not have a foreign language equivalent due to their strong historical background. One, who is able to master the use of Chéngyǔ, is considered as well-educated and receives respect.