In this respect poets were the same as the rest of people. From some mysterious source they had acquired truths, often great and profound, but they were unable to explain them. This seemed to Socrates a great misery, a real misfortune. I do not know how it happened--not a single historian of philosophy has explained it, and indeed very little interest has been taken in it--but Socrates for some reason decided that an unproven and unexplained truth had less value than a proven and explained one. In our times, when a whole theory, even a conception of the world, has been made of Socrates's idea, this notion seems so natural and self-evident that no one doubts it. But in antiquity the case was different. Strictly, Socrates thought that the poets had acquired their truths, which they were unable to prove, from a very respectable source, which deserved all possible confidence: he himself compared the poets with oracles, and consequently admitted that they had communion with the gods. There was, therefore, a most excellent guarantee that the poets were possessed of real, undiluted truth--the pledge of its purity being the divine authority. Socrates said that he himself had frequently been guided in his actions, not by considerations of reason, but by the voice of his mysterious 'demon.' That is, at times, he abstained from certain actions--his demon gave him never positive, but only negative advice--without being able to produce reasons, simply because the secret voice, more authoritative than any human mind, demanded abstinence from them.