Γελᾷ δ' ὁ μωρός, κἄν τι μὴ γέλοιον ᾖ → The fool laughs even when there's nothing to laugh at
σκυτάλη, σκυτάλα, ῥόπτρον, κορύνη, σκύταλον, ῥόπαλον