"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."
Well, it's meant you have to know what your enemy, learn what your enemy think. But, you've to know about yourself, too. Use your ability and your talents to fight them.
Ah, You;ve to keep your friends. They can help you a lot. But, you've more to keep you enemies closer, they can hit you in he back. You've to awake to control the situation.