γελᾷ δ' ὁ μωρός, κἄν τι μὴ γέλοιον ᾖ → the fool laughs even when there's nothing to laugh at
peccātor: ōris, m. id.,I a transgressor, sinner (post-class.), Lact. 3, 26; Tert. Spect. 3; Vulg. Matt. 9, 10 et saep.