Warenkorb

Your cart is currently empty.

知彼知己者，百战不殆；不知彼而知己，一胜一负，不知彼，不知己，每战必殆。
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.

孙子 | Sun Tzu (544-496 BCE)