Ask at the forum if you have an Ancient or Modern Greek query!
Γελᾷ δ' ὁ μωρός, κἄν τι μὴ γέλοιον ᾖ → The fool laughs even when there's nothing to laugh at
P. and V. τὸ σεμνόν, εὐκοσμία, ἡ, Ar. and P. κοσμιότης, ἡ.