Ζῆν οὐκ ἄξιος, ὅτῳ μηδὲ εἷς ἐστι χρηστὸς φίλος → Life is not worth living if you do not have at least one friend.
adj.
Acquainted with: P. and V. ἐπιστήμων (gen.), ἔμπειρος (gen.), V. ἴδρις (gen.); see versed in.
Be conversant with: P. and V. ὁμιλεῖν (dat.).
