Sun Tzu (孫子 Sūn Zǐ; c. 6th century BC) was a Chinese general, military strategist, and philosopher who lived in the Eastern Zhou period of ancient China. Sun Tzu is traditionally credited as the author of The Art of War, a widely influential work of military strategy that has affected both Western and East Asian philosophy and military thinking. He is also known as Sun Wu (孫武; Sūn Wǔ), and Chang Qing (長卿; Cháng Qīng).
About Sun Tzu himself this is all that Ssu-ma Ch`ien has to tell us in this chapter. But he proceeds to give a biography of his descendant, Sun Pin, born about a hundred years after his famous ancestor's death, and also the outstanding military genius of his time.