Philosophy, poetry, tradition, oracles and mysteries[63] bring Plutarch to belief in gods. "There are not Greek gods and barbarian, southern or northern; but just as sun, moon, sky, earth and sea are common to all men and have many names, so likewise it is one Reason that makes all these things a cosmos; it is one Providence that cares for them, with ancillary powers appointed to all things; while in different people, different honours and names are given to them as customs vary. Some use hallowed symbols that are faint, others symbols more clear, as they guide their thought to the divine."[64] This one ultimate Reason is described by Plutarch in terms borrowed from all the great teachers who had spoken to the Greeks of God. The Demiurge, the One and Absolute, the World-Soul and the rest all contribute features.[65] "We," he says, "have really no share in Being, but every mortal nature, set between becoming and perishing, offers but a show and a seeming of itself, dim and insecure"; and he quotes the famous saying of Heraclitus that it is impossible to descend into the same river twice, and develops the idea of change in the individual. "No one remains, nor is he one, but we become many as matter now gathers and now slips away about one phantasm and a common form (or impress).... Sense through ignorance of Being is deceived into thinking that the appearance is. What then indeed is Being? The eternal, free from becoming, free from perishing, for which no time brings change.... It is even impious to say 'Was' or 'Will be' of Being; for these are the varyings and passings and changings of that which by nature cannot abide in Being. But God _is_, we must say, and that _not_ in time, but in the aeon that knows no motion, time or variation, where is neither former {94} nor latter, future nor past, older nor younger; but God is one, and with one Now he has filled Always, and is alone therein the one that Is."[66]