And there's been some efforts cross-culturally, to go back to the question this young man asked before looking at cross-cultural differences in toilet training and weaning, which are really big differences, to see if they correspond in any interesting way to personality differences.

回到刚才那位同学提出的问题，确实也已经有些跨文化的研究试图探究,在如厕训练和断奶上的跨文化差异,这些差异是非常大的，而这些研究的目的，是为了看看这些跨文化上的差异,是否与人格差异存在着某种联系。

耶鲁公开课 - 心理学导论课程节选