The man who is fortunate in his choice of a son-in-law gains a son; the man unfortunate in his choice loses his daughter also.

[Δημόκριτος ἔφη, ὡς γαμβροῦ ὁ μὲν ἐπιτυχὼν εὗρεν υἱόν, ὁ δὲ ἀποτυχὼν ἀπώλεσε καὶ θυγατέρα.]

Democritus (c. 460 BC - c. 370 BC) Greek philosopher

Frag. 272 (Diels) [tr. Freeman (1948)]
    (Source)

Diels citation "272. (0 N.) ... Zweifelhalft, da Apophthegmenform."; collected in Joannes Stobaeus (Stobaios) Anthologium IV, 70, 18.

Alternate translations:

• "One who is lucky in his son-in-law gains a son, one who is unlucky loses a daughter." [tr. Barnes (1987)]
• "The man who is lucky in his son-in-law gains a son, whilst the man who fails loses a daughter."