Hello Ms. Ji Qingping, and Huimin JIA,

My name is Mohsen Mostafavi, I am a professor at Harvard and was the dean of the Graduate School of Design. Yu Kongjian and I collaborated on various projects and had a research center for a few years at Beijing University. I am writing to share my deepest condolences about the tragic passing of Yu Kongjian. He will be sadly missed, but his achievements will last forever.

Best,

Mohsen Mostafavi

Alexander and Victoria Wiley Professor of Design & Harvard University Distinguished Service Professor

译文：

尊敬的季庆平女士、贾慧敏女士：

您好！我是Mohsen Mostafavi，现任哈佛大学教授，曾任设计研究生院院长。我曾与俞孔坚教授合作开展多个项目，并在北京大学共同主持研究中心多年。值此悲痛时刻，我谨对俞孔坚教授的溘然离世致以最深切的哀悼。他的离去令人痛惜，但其卓越成就必将永载史册。

此致

敬礼

Mohsen Mostafavi

哈佛大学Alexander与Victoria Wiley设计学讲席教授  哈佛大学杰出服务教授