Great results, can be achieved with small forces.

Unless you enter the tiger's lair, you cannot get hold of the tiger's cub's.

The relative size of your force as against that of your adversary is by itself of no consequence. What controls is the relative size of your force at the point where you join in battle. You can strike with the few and be many if you strike your adversary in his gaps. Seek out places where the defense is not strict, the place not tightly guarded, the generals weak, the troops disorderly, the supplies are scarce and the forces are isolated.

Bring war material with you from home, but forage on the enemy... use the conquered foe to augment one's own strength.

If a general shows confidence in his men but always insists on his orders being obeyed, the gain will be mutual.

There is nothing more difficult than tactical maneuvering. The difficult consists in turning the devious into the direct, and misfortune into gain. Thus, to take a long and circuitous route after enticing the enemy out of the way, and though starting after him to contrive to reach the goal before him, shows knowledge of the artifice of deviation.

Ultimate excellence lies not in winning every battle, but in defeating the enemy without ever fighting.