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.
Fear comes from uncertainty; we can eliminate the fear within us when we know ourselves better. As the great Sun Tzu said: “When you know yourself and your opponent, you will win every time. When you know yourself but not your opponent, you will win one and lose one. However, when you do not know yourself or your opponent, you will be imperiled every time.
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.
Therefore I say: 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 of yourself, you are certain in every battle to be in peril.
If you will stop all searching right now and tell the truth to yourself,
you will know what is known in the core of your bones.
You will know it with no image of it, no concept of it, no thought of it.
You will know it as that which has eternally been here.
And you will know it as yourself.
Meditation is a journey to know yourself. Knowing yourself has many layers. Start knowing your bodily discomforts. Know your success, know your failures. Know your fears. Know your irritations. Know your pleasures, joy and happiness. Know your mental wounds. Go deeper and examine every feeling you have.
If you know both yourself and your enemy, you can win a hundred battles without a single loss.
Get to know yourself. Know your own failings, passions, and prejudices so you can separate them from what you see. Know also when you actually have thought through to the nature of the thing with which you are dealing and when you are not thinking at all... Knowing yourself and knowing the facts, you can judge whether you can change the situation so it is more to your liking. If you cannot--or if you do not know how to improve on things--then discipline yourself to the adjustments that will be necessary.
And since you know you cannot see yourself, so well as by reflection, I, your glass, will modestly discover to yourself, that of yourself which you yet know not of.
If you reveal everything, bare every feeling, ask for understanding, you lose something crucial to your sense of yourself. You need to know things that others don't know. It's what no one knows about you that allows you to know yourself.
Against them make ready your strength to the utmost of your power, including steeds of war, to strike terror into (the hearts of) the enemies, of Allah and your enemies, and others besides, whom ye may not know, but whom Allah doth know
Know the enemy, know yourself; your victory will never be endangered. Know the ground, know the weather; your victory will then be total.
Know the enemy and know yourself; in a hundred battles you will never peril.
Be friends with everybody. When you have friends you will know there is somebody who will stand by you. You know the old saying, that if you have a single enemy you will find him everywhere. It doesn't pay to make enemies. Lead the life that will make you kindly and friendly to every one about you, and you will be surprised what a happy life you will live.
It's good for everyone to understand that they are to love their enemies, simply because your enemies show you things about yourself you need to change. So in actuality enemies are friends in reverse.
Know your enemy and know yourself and you can fight a hundred battles without disaster.
Hence the saying: If you know the enemy and you know yourself, your victory will not stand in doubt; if you know Heaven and you know Earth, you may make your victory complete.