If the mind is willing, the flesh could go on and on without many things.

Build your opponent a golden bridge to retreat across.

The rising of birds in their flight is the sign of an ambuscade. Startled beasts indicate that a sudden attack is coming.

Invincibility is in oneself, and vulnerability is in the opponent. Invincibility is a matter of defense, vulnerability is a matter of attack. Therefore skillful warriors are able to be invincible, but they cannot cause opponents to be vulnerable. That is why it is said that victory is discerned and not manufactured.

It is essential to seek out enemy agents who have come to conduct espionage against you and to bribe them to serve you. Give them instructions and care for them. Thus doubled agents are recruited and used.

Thus, though I have heard of successful military operations that were clumsy but swift, cleverness has never been seen associated with long delays.

Do not press an enemy at bay.