彼を知り己を知れば、百戦して殆うからず。彼を知らずして己を知れば、一勝一負す。彼を知らず己を知らざれば、戦うごとに必ず殆うし。 - 孫武 (紀元前544頃? - 前496頃?): 『孫子（兵法）』謀攻篇
/ (［（漢）知彼知己者、百戦不殆。不知彼而知己、一勝一負。不知彼不知己、毎戦必殆。］)
/ 敵を知ると同時に自分自身を知れ。
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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. - Sun Tzu [Sun Zi] (c.544? - c.496?B.C.): The Art of War "Attack by Stratagem" (trans. by Lionel Giles (1875 - 1958))
/ Know yourself as well as your enemy.
![IMAGE: Patriotism is your conviction that this country is superior to all others because you were born in it. [Patriotism: Your conviction that this country is superior to all other countries because you were born in it. / Patriotism is, fundamentally, a conviction that a particular country is the best in the world because you were born in it.]](https://www.ok312.net/wp-content/uploads/2025/10/ai-generated-9017144_640-100x67.jpg)
