The Histories · 6.75

The Lacedemonians, hearing that Cleomenes was acting thus, were afraid, and proceeded to bring him back to Sparta to rule on the same terms as before: but when he had come back, forthwith a disease of madness seized him (who had been even before this somewhat insane ), and whenever he met any of the Spartans, he dashed his staff against the man's face. And as he continued to do this and had gone quite out of his senses, his kinsmen bound him in stocks. Then being so bound, and seeing his warder left alone by the rest, he asked him for a knife; and the warder not being at first willing to give it, he threatened him with that which he would do to him afterwards if he did not; until at last the warder fearing the threats, for he was one of the Helots, gave him a knife. Then Cleomenes, when he had received the steel, began to maltreat himself from the legs upwards: for he went on cutting…

Herodotus of Halicarnassus · trans. G. C. Macaulay, 1890
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