He also held that knowledge of true causes of passive emotion can transform it to an active emotion, thus anticipating one of the key ideas of Sigmund Freud's psychoanalysis.
他也认为，具有被动情感真实动机的知识可以将其转化为主动情感，因此预见了西格蒙德·弗洛伊德心理分析的一个关键的思想。