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.
People say misery loves company, but I think freedom does too.
最好的艺术教育是教会学生如何观看。
人们从失败中学习并成长。
你不会一觉醒来就变成蝴蝶——成长是一个过程。
The time which we have at our disposal every day is elastic; the passions that we feel expand it, those that we inspire contract it.
我不是受害者。我是幸存者。
