不憤不啟；不悱不發。擧一隅，不以三隅反，則不復也。

實而備之，強而避之，怒而撓之，卑而驕之，佚而勞之，親而離之，出其不意，攻其不備。

Anger may in time change to gladness; vexation may be succeeded by content.
But a kingdom that has once been destroyed can never come again into being; nor can the dead ever be brought back to life.

No ruler should put troops into the field merely to gratify his
own spleen; no general should fight a battle simply out of pique.
If it is to your advantage, make a forward move; if not, stay
where you are.
Anger may in time change to gladness; vexation may be succeeded
by content.
But a kingdom that has once been destroyed can never come again
into being; nor can the dead ever be brought back to life.

Anger may in time change to gladness; vexation may be succeeded by content. 21. But a kingdom that has once been destroyed can never come again into being; nor can the dead ever be brought back to life. 22. Hence the enlightened ruler is heedful, and the good general full of caution. This is the way to keep a country at peace and an army intact.

故敵逸能勞之，飽能飢之，安能動之。出其所不趨，趨其所不意。