Why has Sidgwick's political philosophy fallen into oblivion while his ethics continues to be celebrated? Not because his performance in that field was inferior, nor because his choice of topics has become outdated, nor because his conclusions were largely conservative. Instead the problem stems from the weight he attached to common sentiments and beliefs in his application of the utility principle, illustrated by his treatment of topics such as secession and colonialism. Moreover his Elements of Politics is arranged in such a way that he never has to confront the basic question of what makes states legitimate. This means that neither political moralists, who want to see the utility principle applied in more radical fashion, nor political realists, for whom the problem of establishing political order is central, find much to commend in his political philosophy.

中文翻译：

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亨利·西奇威克的政治哲学

为什么西奇威克的政治哲学却被人遗忘，而他的伦理却继续受到赞扬？不是因为他在该领域的表现较差，也不是因为他选择的主题已经过时，也不是因为他的结论在很大程度上是保守的。相反，问题源于他在应用效用原则时对共同情绪和信念的重视，他对分离和殖民主义等主题的处理就说明了这一点。而且他的政治要素以这样一种方式安排他永远不必面对什么使国家合法的基本问题。这意味着无论是希望看到效用原则以更激进的方式应用的政治道德家，还是以建立政治秩序问题为中心的政治现实主义者，他的政治哲学都没有太多值得称赞的地方。