And that the devil so spoken of by the Barbarian philosophy, the prince of the demons, is a wicked spirit, Plato asserts in the tenth book of the Laws, in these words: “Must we not say that spirit which pervades the things that are moved on all sides, pervades also heaven? Well, what? One or more? Several, say I, in reply for you. Let us not suppose fewer than two—that which is beneficent, and that which is able to accomplish the opposite.” Similarly in the Phædrus he writes as follows: “Now there are other evils. But some demon has mingled pleasure with the most things at present.” Further, in the tenth book of the Laws, he expressly emits that apostolic sentiment, “Our contest is not with flesh and blood, but principalities, with powers, with the spiritual things of those which are in heaven;” writing thus: “For since we are agreed that heaven is full of many good beings; but it is also full of the opposite of these, and more of these; and as we assert such a contest is deathless, and requiring marvellous watchfulness.”