一个设计良好的系统应该易于使用、易于理解和易于修改。
A well-designed system should be easy to use, easy to understand, and easy to modify.
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.
A novel is not written to give answers but to ask the right questions.
革命是无情的，不仅对那些落后的人，而且对那些跑在前面的人。
除非我觉得自己能成为最好的，否则我不会做任何事。
I have come to realise that men are not born to be free.