What is Zhu's Neo-Confucianism and its essence?

Zhu is a master of science. He vigorously advocated his "Tai Chi", that is, "natural justice" and "preserving natural justice and eliminating human desires", and became the founder of Zhu Cheng Neo-Confucianism. Its essence is to strengthen the "three cardinal guides and five permanents" and tame the people to obey feudal rule, which has become a powerful support for feudal rule.

To put it simply, the essence of Zhu's Neo-Confucianism is to strengthen the "three cardinal guides and five permanents" and to preach "to preserve justice and destroy human desires".