In the midst of chaos, there is also opportunity.

It is only one who is thoroughly acquainted with the evils of war that can thoroughly understand the profitable way of carrying it on.

Do not engage an enemy more powerful than you. And if it is unavoidable and you do have to engage, then make sure you engage it on your terms, not on your enemy's terms.

All war is based on deception.

Go into emptiness, strike voids, bypass what he defends hit him where he does not expect you.

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

If asked how to cope with a great host of the enemy in orderly array and on the point of marching to the attack, I should say: "Begin by seizing something which your opponent holds dear; then he will be amenable to your will." Rapidity is the essence of war: take advantage of the enemy's unreadiness, make your way by unexpected routes, and attack unguarded spots.