Diogenes Laertius Vitae philosophorum 1.3.68

[68] Chilon, son of Damagetas, was a Lacedaemonian. He wrote a poem in elegiac metre some 200 lines in length; and he declared that the excellence of a man is to divine the future so far as it can be grasped by reason. When his brother grumbled that he was not made ephor as Chilon was, the latter replied, I know how to submit to injustice and you do not. He was made ephor in the 55th Olympiad; Pamphila, however, says the 56th. He first became ephor, according to Sosicrates, in the archonship of Euthydemus. He first proposed the appointment of ephors as auxiliaries to the kings, though Satyrus says this was done by Lycurgus. ¹

As Herodotus relates in his first Book, when Hippocrates was sacrificing at Olympia and his cauldrons boiled of their own accord, it was Chilon who advised him not to marry, or, if he had a wife, to divorce her and disown his children.