"Comic behavior is childish behavior, which means that all comedians are children, immature. Stan Laurel is a child, he cries all the time [...], Jerry Lewis was a silly child, Totò never really touched a woman, Sordi the same. [...] Childish behavior, I would say, brings to light, in a sudden, unexpected way, the happiest period of life: childhood, which provokes a great emotion of happiness and therefore laughter. All great comedians have always moved and behaved immaturely, like children."
January 1, 1970
https://en.wikiquote.org/wiki/Paolo_Villaggio