Thought is a biological function with survival value.

"Identity is not fixed; it is fluid and constantly evolving."

Do not use power to suppress opinions you think pernicious, for if you do the opinions will suppress you.

The world is all that is the case.

"Every book is a door to another world, a world that exists only in the imagination of the reader."

The more I learn, the more I realize how much I don’t know.

译文：读书学习，每天都要补上自己的不足，半途而废和剪断织布的线有啥区别?(乐羊子妻劝丈夫坚持学习)

出自《海国图志序》。学习外国的长处用来征服外国。