Challenges are what make us grow; embrace them with courage and determination.
学习的最佳方式是教授。
释义：正直仁信，原则处世，宏大包容，依此处世，不用学习世俗的那一套也不会不利。此句强调自然的品质，反对虚伪骄饰。
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.
