如果要有敵人，本身必須是個人物。他必須有股力量，才能被另一股力量所抗拒。惡毒的敵人勝過笨拙的朋友。

In order to have an enemy, one must be somebody. One must be a force before he can be resisted by another force. A malicious enemy is better than a clumsy friend.