προτρεπτικός
From LSJ
ἁρμονίη ἀφανὴς φανερῆς κρείττων → the hidden attunement is better than the obvious one, invisible connection is stronger than visible, harmony we can't see is stronger than harmony we can, unseen harmony is stronger than what we can see
English (LSJ)
ή, όν,
A hortatory, λόγοι Isoc.1.3, cf. Phld.Po.5 Fr.1, IG22.2291a.4, etc.; ἡ π. σοφία skill in oratory, Pl. Euthd.278c, cf. Chrysipp.Stoic.3.189; π. (sc. λόγος), ὁ, title of works by Aristotle, Epicurus, Cleanthes, etc.: Comp., οὐδὲν -κώτερον Arr. Epict.3.23.36: Sup., κήρυγμα -κώτατον πρὸς ἀρετήν Aeschin.3.154. Adv. -κῶς encouragingly, Luc.Somn.3. 2 generally, exciting, stimulating, ἐς οὔρησιν Hp.Acut.59; γάλακτος Gp.12.13.2.