Philo's philosophy is certainly eclectic in some degree, and we find in it ideas taken from the schools of Plato, Aristotle, Pythagoras, and the Stoics. Its fixed point was his theology, and wherever he finds anything to support this he adapts it to his [pg.170] purpose. He approached philosophy from a position opposed to that of the Greeks: they brought a questioning and free mind to the problems of the universe; he comes full of religious preconceptions. Yet in this lies his strength as well as his limitation, for he gains thus a point of certainty and a clear end, which other eclectic systems of the day did not possess. He welds together all the different elements of his thought in the heat of his passion for God. His cosmology and his ontology are a philosophical exposition of the Jewish conception of God's relation to the universe, his ethics and his psychology of the Jewish conception of man's relation to God.

The religious preconceptions of Philo drew him to Plato above all other philosophers, so that his thought is essentially a religious development of Platonism. It is not too much to say that Philo's work has a double function, to interpret the Bible according to Platonic philosophy and to interpret Plato in the spirit of the Bible. The agreement was not the artificial production of the commentator, for in truth Plato was in sympathy with the religious conscience as a whole. The contrast between Hellenism and Hebraism is true, if we restrict it to the average mind of the two races. The one is intent on things secular, the other on God. But the greatest genius of the Hellenic race, influenced perhaps by contact with Oriental peoples, possessed, in a remarkable degree, the Hebraic spirit, which is zealous for God and makes for righteousness. Plato was not only a great [pg.171] philosopher, but also a great theologian, a great religious reformer, and a great prophet, the most perfectly developed mind which the world, ancient or modern, has known. His "Ideas," which are the archetypes of sensible things, were not only logical concepts but also a kingdom of Heaven connected with the human individual by the Divine soul. And as he grew older so his religious feeling intensified, and he translated his philosophy into theology and positive religion. Platonism, it has been well said, is a temper as much as a doctrine; it is the spirit that turns from the earth to Heaven, from creation to God. In his last work, "The Laws," wherein he designs a theocratic state, which has striking points of resemblance with the Jewish polity, he says: "The conclusion of the matter is this, which is the fairest and truest of all sayings, that for the good man to sacrifice and hold converse with the Deity by means of prayers and service of every kind is the noblest thing of all and the most conducive to a happy life, and above all things fitting."[235]

This is typical of Plato's attitude towards life in his old age; and further, his metaphysical system of monistic idealism is the most remarkable approach to Hebrew monotheism which the Greek world made. The Patristic writers in the first centuries of the Christian era were so struck by this Hebraism in the Greek thinker, that they attributed it to direct borrowing. [pg.172] Aristobulus had written of a translation of the Pentateuch older than the Septuagint, which Plato was supposed to have studied. Clement called him the Hebrew philosopher, Origen and Augustine comment on his agreement with Genesis, and think that when he was in Egypt he listened to Jeremiah.[236] Eusebius worked out in detail his correspondences with the Bible. Some early neo-Platonist, perhaps Numenius, declared that Plato was only the Attic Moses; and in more modern times the Cambridge Platonists of the sixteenth century harbored similar ideas, and Nietzsche spoke bitterly of the day when "Plato went to school with the Jews in Egypt."

Of Philo, then, we may say, as Montaigne said of himself, that he was a Platonist before he knew who Plato was. Yet he was the first Hellenistic Jew who perceived the fundamental harmony between the philosopher's idealism and Jewish monotheism, and he was the first important commentator of Plato who developed the religious teaching of his master into a powerful spiritual force.

It is true that the seeds of neo-Platonism, i.e., the religious re-interpretation of Platonism under the influence of Eastern thought, had been sown already; and Philo must have received from his environment to some extent the mystical version of the master's system, with its goal of ecstatic union with God, and its tendency to asceticism as a means thereto. But the earlier products of the movement had been crude, [pg.173] and had lacked a powerful moving spirit. This was provided by Philo when he introduced his overmastering conception of God. The popular saying, "Either Plato Philonizes or Philo Platonizes"[237] contains a deep truth in its first as well as in its second part. It not only marks the likeness in style of the two writers, but it suggests that Philo, on the one hand, made fruitful the religious germ in Plato's teaching by his Hebraism, and, on the other, nourished the philosophical seed in Judaism by his Platonism. Plato's teaching falls into two main classes, the dialectical and the mythical, and it is with the latter that Philo is in specially close connection. For in his myths Plato tries to achieve a synthesis by imaginative flight where he had failed by discursive reason. He unifies experience by striking intuitions, something in the spirit of a Hebrew prophet. Moreover his style, as well as his thought, has here affinity with Jewish modes of thought. As Zeller says, speaking of the myths: "From the first, in the act of producing his work he thinks in images. They mark the point where it becomes evident that he cannot be wholly a philosopher because he is still too much of a poet." And this is true of all Philo's writings, and to generalize somewhat widely, of most Jewish philosophy. In "The Timæus," particularly, Plato, throughout, is the poet-philosopher, writing imaginative myths, which present pictorially an idealistic scheme of the universe; and "The Timæus" is for [pg.174] Philo, after the Bible, the most authoritative of books, the source of his chief philosophical ideas.

The dominant philosophical principle of Plato is what is known as the Theory of Ideas. He imagined a world of real existences, invisible, incorporeal, eternal, grasped only by thought, prior to the objects of the physical universe, and the models or archetypes of them. In "The Timæus," which is a system of cosmology at once religious and metaphysical, the "Ideas" are represented as the thoughts of the one Supreme Mind, the intermediate powers by which the Supreme Unity, known as the "Idea of the Good," or "the Creator," evolves the material universe. Thus the universe is seen as the manifestation of one Beneficent Spirit, who brings it into existence and rules over it through His "ideal" thoughts. Philo adopts completely and uncritically this theory of transcendental ideas in his philosophical exegesis of the cosmogony in Genesis. "Without an incorporeal archetype God brings no simple thing to fulfilment."[238] There is an idea of stars, of grass, of man, of virtue, of music. And the Platonic conception receives a religious sanction. The ideas are a necessary step between God and the material universe, and those who deny them throw all things into confusion.[239] "God would not touch matter Himself, but He did not grudge a share of His nature to it through His powers, of which the true name [pg.175] is ideas." We have already noticed[240] how ingeniously Philo deduces the Theory of Ideas from the Biblical account of the creation, and associates it with the Hebraic conception of the ministerial Wisdom and Word. He, however, gives a new direction to the Platonic theory, owing to his Hebraic conception of God. The ideas with him are not the thoughts of an impersonal mind, but the emanations of a personal, volitional Deity. Keeping close to Jewish tradition, he says that they are the words of the Deity speaking. As human speech consists of incorporeal ideas, which produce an effect upon the minds of others, so the Divine speech is a pattern of incorporeal ideas which impress themselves upon a formless void, and so create the material world.[241] In this way Philo associates his cosmology with his theology. The creative "Ideas" are equated collectively with the Supreme Logos,[242] individually with the Logoi which represent God's particular activities. Thus the Logos represents the whole ideal or noetic world, "the kingdom of Heaven"; and it is in this metaphysical sense that the Logos is the first creation, "the first-born son of God," prior to the physical universe, which is His grandson. The whole universe is thus seen as the orderly manifestation of one principle. Philo, expanding a favorite image of the Haggadah, illustrates God's creation by the simile of a king founding a city. "He gets to him an architect, who first designs [pg.176] in his mind the parts of the perfect city, and then, looking continually to his model, begins to construct the city of stones and wood. So when God resolved to found the world-city, He first brought its form into mind, and using this as a model he completed the visible world."[243]

The theory of religious idealism is the centre of Philo's philosophy, and provides the basis of his explanation of the material universe. Physics, indeed, he considered of small account, because he believed there could be no certainty in such speculations.[244] His mind was utterly unscientific; but as a religious philosopher he found it necessary to give a theory of the creation. Jewish dogma held that the world had been called into being out of nothing; the Greek philosophers repudiated such an idea, and held that creation must be the result of a reasonable process; Aristotle had imagined that matter was a separately existent principle with mind, and that the world was eternal; and the Stoics held that matter was the substance of all things, including the pantheistic power itself:

"All are but parts of one stupendous whole,
Whose body nature is, and God the soul."

Philo impugns both these theories,[245] the one because it denies the creative power of God, the other because it confuses the Creator with His creation. He looked [pg.177] for a system which should satisfy at once the Jewish notion that the world was brought out of nothing by the will of God, and the philosophical concept that God is all reality; and he found in Plato's idealism a view of the creation which he could harmonize with the religious view. Plato declared that the material world had been created out of the Non-Ens