the enemy is at the gate ? 但人類究竟不能這么沉靜，當～之際，手無寸鐵，殺不得敵人，而心里總是憤怒的，于是他就不免尋求敵人的替代。(《魯迅選集》Ⅲ—253)But men cannot remain so placid. When the enemy is at the gate and they have no arms to resist him,they will at least rage inwardly. Thus they have to find some substitute for the enemy.