Polybius, The Histories — Book IV (1922)
“ On their march through the territory of Patrae, Pharae, and Tritaea, they pretended indeed not to wish to inflict any hurt on the Achaeans, but as the men could not keep their hands off the country, owing to their passion for pillaging, they went through it, spoiling and damaging, until they reached Phigalea. Thence by a bold and sudden rush they invaded Messenia, utterly regardless both of their long-existing alliance and friendship with the Messenians and of the established law of nations. ”
