The former offers a universal foundation of human nature while the latter supports the rational egoism pragmatically. 前者为合理利己主义的证立提供了普遍的人性基础，而后者则为合理利己主义的推行提供了来自现实功利的有力支待。
Rational egoism can be regarded as an ethnical theory when rational points of view are stated. 摘要合理利己主义不失为一种可以作为理性观点申述的伦理学观点。
