The explicit mandate of positive psychology as well as of this class is to create a bridge between Ivory tower and mainstreet.

积极心理学及本课程的宗旨非常明确,就是要在象牙塔及大众间构建桥梁。

哈佛公开课 - 幸福课课程节选

The idea of bridging Ivory tower and Main Street.

也就是，搭起学校与社会之间的桥梁的想法。

哈佛公开课 - 幸福课课程节选