εἰς πέλαγος σπέρµα βαλεῖν καὶ γράµµατα γράψαι ἀµφότερος µόχθος τε κενὸς καὶ πρᾶξις ἄκαρπος → throwing seeds and writing letters at sea are both a vain and fruitless endeavor
intelligence, mind: P. and V. νοῦς, ὁ, σύνεσις, ἡ, γνώμη, ἡ, Ar. and P. διάνοια, ἡ, Ar. and V. φρήν, ἡ, or pl. (rare P.).
power of understanding: P. and V. μάθησις, ἡ.
