They're theories of everything, encompassing just about everything that matters, day-to-day life, child development, mental illness, religion, war, love.

它们试图对世间的一切做出解释，包括了日常生活，儿童发展，心理疾病，宗教，战争及爱情。

耶鲁公开课 - 心理学导论课程节选