This sentence comes from the eleventh chapter of the Confucian classic "University". The original sentence containing this sentence is: a country should not be careless, it must be the world.

Interpretation: People who rule the country must be cautious. A little bias will be overthrown by everyone.

Lu: by "killing", killing.

Introduction to "University":

University was originally Article 42 of the Book of Rites.

In the Song Dynasty, Cheng Hao and Cheng Yi brothers took them out of the Book of Rites and compiled chapters and sentences. Zhu called Daxue, The Doctrine of the Mean, The Analects of Confucius and Mencius as four books, and Daxue became a Confucian classic.

As for the author of Da Xue, Cheng Hao and Cheng Yi thought it was "Kong's last words". Zhu rearranged The University, which was divided into one chapter of Jing and ten chapters of Biography. That "the words of Confucius, cover a chapter, Ceng Zi said; The tenth chapter is the meaning of Ceng Zi, and the master remembers it. "

In other words, "Jing" is the words of Confucius and recorded by Ceng Zi; "Biography" is the interpretation of "Jing", which is recorded by students.