The documenta must always remain a question, never an answer.

The pain you feel today will be the strength you feel tomorrow.

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.

通过贪婪的阅读，成为一个终身自学者；培养好奇心，努力让自己每天都变得更聪明一点。

数学是为不同事物赋予相同名称的艺术。

The past is a foreign country; they do things differently there.

Art is not what you see, but what you make others see.

【解释】脑力劳动者统治人，体力劳动者被人统治；被统治者养活别人，统治者靠别人养活，这是通行天下的原则。