[84]
His proof of this was a logical one; the absolutely self-existent could not be thought in conjunction with attributes which either admitted any external influencing Him, or any external influenced by Him. The prevailing dualism he considered to be, as an ultimate theory of the universe, unthinkable and therefore false. Outside the Self-existent there could be no second self-existent, otherwise each would be conditioned by the existence of the other, and the Self-existent would be gone. Anything different from the Self-existent must be of the non-existent, i.e. must be nothing.
{33}
One can easily see in these discussions some adumbration of many theological or metaphysical difficulties of later times, as of the origin of evil, of freewill in man, of the relation of the created world to its Creator. If these problems cannot be said to be solved yet, we need not be surprised that Xenophanes did not solve them. He was content to emphasise that which seemed to him to be necessary and true, that God was God, and not either a partner with, or a function of, matter.
[89]
At the same time he recognised a world of phenomena, or, as he expressed it, a world of guesswork or opinion ((Greek) doxa). As to the origin of things within this sphere he was ready enough to borrow [90] from the speculations of his predecessors. Earth and water are the sources from which we spring; and he imagined a time when there was neither sea nor land, but an all-pervading slough and slime; nay, many such periods of inundation and emergence had been, hence the sea-shells on the tops of mountains and the fossils in the rocks. Air and fire also as agencies of change are sometimes referred to by him; anticipations in fact are visible of the fourfold classification of the elements which was formally made by some of his successors.
[91]
II. PARMENIDES.—The pupil and successor of Xenophanes was PARMENIDES, a native of Elea. In a celebrated dialogue of Plato bearing the name of {34} this philosopher he is described as visiting Socrates when the latter was very young. "He was then already advanced in years, very hoary, yet noble to look upon, in years some sixty and five." Socrates was born about 479 B.C. The birth of Parmenides might therefore, if this indication be authentic, be about 520. He was of a wealthy and noble family, and able therefore to devote himself to a learned leisure. Like his master he expounded his views in verse, and fragments of his poem of considerable length and importance have been preserved. The title of the work was Peri Phueos—Of Nature.
[93]
The exordium of the poem is one of some grandeur. The poet describes himself as soaring aloft to the sanctuary of wisdom where it is set in highest aether, the daughters of the Sun being his guides; under whose leading having traversed the path of perpetual day and at length attained the temple of the goddess, he from her lips received instruction in the eternal verities, and had shown to him the deceptive guesses of mortals. "'Tis for thee," she says, "to hear of both,—to have disclosed to thee on the one hand the sure heart of convincing verity, on the other hand the guesses of mortals wherein is no ascertainment. Nevertheless thou shalt learn of these also, that having gone through them all thou may'st see by what unsureness of path must he go who goeth the way of opinion. From such a way of searching {35} restrain thou thy thought, and let not the much-experimenting habit force thee along the path wherein thou must use thine eye, yet being sightless, and the ear with its clamorous buzzings, and the chattering tongue. 'Tis by Reason that thou must in lengthened trial judge what I shall say to thee."