Success is not about fame or money, but about touching people’s hearts.

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.

解释：国家每做一件事必然是有毁谤也有赞美，忠臣把毁谤都加在自己身上，而把赞美都归于君主。