young men think old men are fools, but old men know young men

US /jʌŋ men ˌθɪŋk oʊld men ɑːr ˈfuːlz bət oʊld men ˌnoʊ jʌŋ men/

年轻人认为老年人是傻瓜，但老年人了解年轻人