At 11:50 at night, Huaxia Time, Zheng Xiweng received a call from Tian Yanzhen.
He had been by Qiao Yu's side for many years, and Tian Yanzhen almost never called him proactively.
After all, he was once Qiao Yu's mentor.
Qiao Yu had always done well in respecting teachers and valuing their teachings, influenced quite a bit by his grandfather, embodying the traditional view of a teacher for a day being a father for life.
So whenever there was something, Tian Yanzhen would call Qiao Yu directly.
Even though he had long left this work number for Tian Yanzhen, reflecting on it carefully, this was indeed the first time Zheng Xiweng received a call from this big figure in the mathematics world.
This was one of the reasons why Zheng Xiweng liked Qiao Yu.
Because of his constant proximity to Qiao Yu, Zheng Xiweng had encountered many big names in academic circles involved in mathematics.
Those with some ability were often very proud, and it was a pride that came from the bones.
