Shocking words heard by an archaeology professor at Seoul National University

(1)A professor of archaeology at Seoul National University
(2)shocking words I heard
(3)When I asked what the most memorable thing was, a professor of archaeology at Seoul National University, I remembered that I was working on excavating Mongchon Saturn, and a hat passed by and my mother told my son that if he didn’t study, he would become like that old man
(4)16,000 square meters