Ivory Tower (Ivory Tower) is based on Chapter 7, Section 4 of the Bible "Song of Songs" (the Old Testament, song of songs), the wise and wealthy King of Israel Solomon (Solomon) once wrote a poem 1005 Among them, "Song of Songs" is a song of love. In the fifth song, the groom praises the bride like this, "...Your neck is like an ivory tower. Your eyes are pools in Heshbon, by the gate of Bath-rabbim..." (...Your neck is like an ivory tower. ; Your eyes are like the pool by the gate of Patarajah in Heshbon;...). It is clear that the "ivory tower" here is only used to describe the bride's beautiful neck. The word was later gradually applied to all aspects of social life, mainly referring to "a dreamland isolated from the world, a paradise to escape from real life, and a place of seclusion." In Chinese, the denotative meaning of the ivory tower mainly refers to "a metaphor for the small world of writers and artists that are divorced from real life." Universities and graduate schools are just such places.