故其疾如風，其徐如林，侵掠如火，不動如山，難知如陰，動如雷霆。 - Sun Tzu

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.

There are not more than five musical notes, yet the combination of these five give rise to more melodies that can ever be heard.

For the wise man delights in establishing his merit, the brave man likes to show his courage in action, the covetous man is quick at seizing advantages, and the stupid man has no fear of death.