quot homines, tot sententiae

Latin quotation from Terence

quot ho·​mi·​nes, tot sen·​ten·​ti·​ae kwȯt-ˈhȯ-mi-ˌnās ˌtȯt-sen-ˈten-tē-ˌī 

: as many men, so many opinions : there are as many opinions as there are people