里氏替换原则是面向对象编程中的一个基本概念，它指出子类的对象应该能够替换超类的对象而不影响程序的正确性。
The Liskov Substitution Principle is a fundamental concept in object-oriented programming, stating that objects of a superclass should be replaceable with objects of a subclass without affecting the correctness of the program.
画布是一面镜子，不仅反映艺术家的灵魂，也反映社会的灵魂。
我不惧怕风暴，因为我正在学习如何驾驶我的船。
The wild demands respect. If you give it, it will give back.
In the end, all we have are the stories we tell.