Γελᾷ δ' ὁ μωρός, κἄν τι μὴ γέλοιον ᾖ → The fool laughs even when there's nothing to laugh at
ὀλεθρεύω (Α) όλεθρος1. αφανίζω, εξολοθρεύω, καταστρέφω2. εξοντώνω, φονεύω.