moralise
From LSJ
ὁ ναύτης ὁ ἐν τῇ νηῒ μένων βούλεται τοὺς τέτταρας φίλους ἰδεῖν → the sailor staying on the ship wants to see his four friends
v. intrans.
Talk solemnly: P. σεμνολογεῖσθαι, V. σεμνομυθεῖν. Moralise on: P. φιλοσοφεῖν περί (acc.). Speak truisms: P. ἀρχαιολογεῖν.