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Αὐτάρκης ἔσῃ, ἂν μάθῃς τί τὸ καλὸν κἀγαθόν ἐστι → You will be contented with your lot if you learn what the honourable and good is
P. and V. κύκνος, ὁ (Plato).
swanlike: V. κυκνόμορφος.
swansong: see Aesch., Agamemnon 1444.