According to this website (in Chinese, my translation to English follows, original Chinese below)
In 1988, 76 Nobel prize winners gathered together, including the 46 year old Hawking. The interviewer asked Mr Hawking:
"In which university or laboratory did you learn the most important knowledge?"
Hawking replied:
"I learned the most important knowledge in nursery. Give half of my stuff to my friends. Don't take things that are not mine. Keep tidy… all I learned are these."
"Hawking: Everything I learned in kindergarten is a hundred times more important than any university", Sohu.com, 2019-12-25 19:00 https://www.sohu.com/a/362761642_611018
Original:
1988年,76名世界顶尖的科学家们齐聚一堂,包括当时年仅46岁的霍金。 记者问霍金先生:“您在哪所大学、哪个实验室学到了您认为最重要的东西?”
霍金回答:“我在幼儿园里学到了一生中最重要的东西:把自己的东西分一半给小伙伴,不是自己的东西不拿;东西要 放整齐;吃饭要洗手;做错了事情要表示歉意;学习要多思考;要仔细观察大自然……从根本上说,我学到的东西就是这些。”
Did Stephen Hawking ever say anything resembling this during an interview in a major event?