Authors:

A Communist must never be opinionated or domineering, thinking that he is good in everything while others are good in nothing; he must never shut himself up in his little room, or brag and boast and lord it over others.

Zedong Mao (1972). “Quotations from Chairman Mao Tsetung”, p.274, China Books
A Communist must never be opinionated or domineering, thinking that he is good in everything while others are good in nothing; he must never shut himself up in his little room, or brag and boast and lord it over others.