所有模型都是错误的，但有些是有用的。
释义：用兵之人，不出手则已，一旦出手就必须展现霸主之气。
Your story is your power. Own it.
The Liskov Substitution Principle is a fundamental concept in object-oriented programming, ensuring that derived classes can be used in place of their base classes without altering the correctness of the program.