幸福不是没有痛苦，而是有能力克服它。

唯一真正的监狱是我们为自己建造的监狱。

We are all bound by the social contract to obey the laws， but we also have the right to participate in making those laws.

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.

Gather ye rosebuds while ye may. Old Time is still a-flying. And this same flower that smiles today, tomorrow will be dying.