每当有人跟我聊天气，我总觉得那肯定有弦外之音。
Life is not what one lived, but what one remembers and how one remembers it in order to recount it.
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.
Innovation is not from nothing to something, but from something to better.
