If quick, I survive. If not quick, I am lost. This is death.

No nation has ever benefited from a prolonged war.

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.

Appraise war in terms of the fundamental factors. The first of these factors is moral influence.

The best general is the one who never fights.

In war, numbers alone confer no advantage. Do not advance relying on sheer military power.

In warfare, there are no constant conditions. He who can modify his tactics in relation to his opponent will succeed and win.