μεγάλα ὠφελήσεσθε πρὸς ἱστορίαν τῶν κοινῶν → that will be of great benefit to you in order to understand public affairs
laetanter: adv., v. laetor.
lætantĕr, avec joie : Lampr. Comm. 5, 3 ; Cassiod. Anima 10.
