κρεῖττον σιωπᾶν ἐστιν ἢ λαλεῖν μάτην → it's better to keep silence than to speak without reason (Menander)
stŏlĭdē: adv., v. stolidus.
stŏlĭdē¹⁴ (stolidus), sottement, stupidement : Liv. 25, 19, 2, etc. ; Tac. Ann. 1, 3 || d’une manière insensée : Plin. 15, 52 || stolidius Amm. 19, 5, 2.