The control of large numbers is possible, and like unto that of small numbers, if we subdivide them.

It is the business of a general to be quiet and thus ensure secrecy; upright and just, and thus maintain order.

The general must be the first in the toils and fatigues of the army. In the heat of summer he does not spread his parasol nor in the cold of winter don thick clothing. In dangerous places he must dismount and walk. He waits until the army's wells have been dug and only then drinks; until the army's food is cooked before he eats; until the army's fortifications have been completed, to shelter himself.

It is according to the shapes that I lay the plans for victory, but the multitude does not comprehend this. Although everyone can see the outward aspects, none understands the way in which I have created victory.

One who speaks deferentially but increases his preparations will advance. One who speaks belligerently and advances hastily will retreat.

Secret operations are essential in war; upon them the army relies to make its every move.

There is no place where espionage is not possible.