Odyssey 2.276–277
Athena, disguised as Mentor, to Telemachus
παῦροι γάρ τοι παῖδες ὁμοῖοι πατρὶ πέλονται,
οἱ πλέονες κακίους, παῦροι δέ τε πατρὸς ἀρείους.
Few sons, you know, turn out equal to their fathers:
most are worse, and few prove better than their fathers.