Acculturation is often a complex and contradictory phenomenon. The Morães's work and life reported it. At individual level, Morães reported a fusionist life during nationalist and colonial times. However, at social level he preferred a reduced cultural relationship among Japan and Westerns in order to maintain the Japanese culture. The Morães's attitude also reported the current limits of the multicultural model, because contact led to changes, and not only to cultural maintenance. It unveiled also the limits of assimilation, because Japan imitated other cultures, but maintained its culture. The contradictions reported that the dilemma about cultural contact and change was unsolved, and the current work did not provide a major solution for aggressive relationships. However, the article stated that Europeans should be reported on the position of who is learning a second culture in order to build a common Global History.