If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat.

It is said that if you know your enemies and know yourself, you will not be imperiled in a hundred battles; if you do not know your enemies but do know yourself, you will win one and lose one; if you do not know your enemies nor yourself, you will be imperiled in every single battle.

Know the enemy and know yourself; in a hundred battles you will never be in peril. When you are ignorant of the enemy, but know yourself, your chances of winning or losing are equal. If ignorant both of your enemy and yourself, you are certain in every battle to be in peril.

(1) He will win who knows when to fight and when not to fight. (2) He will win who knows how to handle both superior and inferior forces. (3) He will win whose army is animated by the same spirit throughout all its ranks. (4) He will win who, prepared himself, waits to take the enemy unprepared. (5) He will win who has military capacity and is not interfered with by the sovereign. 18. Hence the saying: If you know the enemy and know yourself, you need not fear the result of a hundred battles. If you know yourself but not the enemy, for every victory gained you will also suffer a defeat. If you know neither the enemy nor yourself, you will succumb in every battle.

If you know the enemy and know yourself, you need not fear the result of a hundred battles.

Know your enemy and know yourself and you can fight a hundred battles without disaster

Know the enemy, know yourself and victory is never in doubt, not in a hundred battles.

If you know the enemy and know yourself, your victory will not stand in doubt; if you know Heaven and know Earth, you may make your victory complete.

Know thy self, know thy enemy. A thousand battles, a thousand victories.

If you know yourself but not the enemy, for every victory gained you will also suffer a defeat.

To fight an enemy properly, you have to know what they are. Ignorance is defeat.

"Know yourself and your adversary and you will be able to fight a hundred battles without a single disaster." This Chinese aphorism is as valuable for guerrilla warfare as a biblical psalm.

Knowing the enemy enables you to take the offensive, knowing yourself enables you to stand on the defensive.

If you have an enemy, then learn and know your enemy, don't just be mad at him or her