And this is confirmed by the name which was given by them to the rational investigation of futurity, whether made by the help of birds or of other signs-this, for as much as it is an art which supplies from the reasoning faculty mind (nous) and information (istoria) to human thought (oiesis) they originally termed oionoistike, but the word has been lately altered and made sonorous by the modern introduction of the letter Omega (oionoistike and oionistike), and in proportion as prophecy (mantike) is more perfect and august than augury, both in name and fact, in the same proportion, as the ancients testify, is madness superior to a sane mind (sophrosune) for the one is only of human, but the other of divine origin.
Zentzudunek egiten duten igarkuntzari, txorien eta gainerako seinaleen bidez etorkizunaren ikerketa egiten dutenenari, ere eman zioten izena. Gogoetaren bidez gizakien pentsamendua adimen eta informazioz hornitzen zuenez, "oionoistike" deitu zioten.