Place your army in deadly peril, and it will survive; plunge it into desperate straits, and it will come off in safety.

Probe him and learn where his strength is abundant and where deficient.

To a surrounded enemy, you must leave a way of escape.

He who is not sage and wise, humane and just, cannot use secret agent.s. And he who is not delicate and subtle cannot get the truth out of them.

Opportunities multiply as they are seized.

There are only five notes in the musical scale, but their variations are so many that they cannot all be heard. There are only five basic colors, but their variations are so many that they cannot all be seen. There are only five basic flavors, but their variations are so many that they cannot all be tasted. There are only two kinds of charge in battle, the unorthodox surprise attack and the orthodox direct attack, but variations of the unorthodox and the orthodox are endless. The unorthodox and the orthodox give rise to each other, like a beginningless circle-who could exhaust them?

Management of many is the same as management of few. It is a matter of organization.