There is social, which is the study of how people act in groups, how people act with other people.

还有社会心理学,主要研究人类的群体行为,如何与他人交流

耶鲁公开课 - 心理学导论课程节选

In 1859, Mill wrote a famous book on liberty, the main point of which was the importance of defending individual rights and minority rights, and in 1861, toward the end of his life, he wrote the book we read as part of this course, "Utilitarianism."

859年穆勒写了本关于自由的名著，书里的主要观点是,争取个体和少数群体权利的重要性，1861年，在晚年时期，他写了《功利主义》，这也属于本课的阅读资料“

耶鲁公开课 - 公正课程节选