γελᾷ δ' ὁ μωρός, κἄν τι μὴ γέλοιον ᾖ → the fool laughs even when there's nothing to laugh at
tristĭtas: ātis, f. tristis,I sadness (anteclass.), Pac. ap. Non. 182, 2; so Turp. ib. 182, 4.
