Sun Tzu (孫子; pinyin: Sūnzǐ) is a honorific title bestowed upon Sūn Wu (孫武 c. 544-496 BC), the author of The Art of War (孫子兵法), an immensely influential ancient Chinese book on military strategy. Sun Tzu believed in the use of the military sciences to effect outcomes that would result in peace. In the author's name, Sūn Wu, the character wu, meaning "military", is the same as the character in wu shu, or martial art. Sun Wu also has a courtesy name, Chang Qing (Cháng Qīng).

Chinese philosopher Confucius, originally Kong Fuzi and born circa 551 BC, promoted a system of social and political ethics, emphasizing order, moderation, and reciprocity between superiors and subordinates; after his death in 479 BC, disciples compiled the Analects , which contains a collection of his sayings and dialogues. Teachings of this social thinker deeply influenced Korean, Japanese, and Vietnamese life. 孔子 - Kong Zi 孔夫子 - Kong Fuzi (Kung Fu-Tzu) https://en.wikipedia.org/wiki/Confucius