Note (return) — Chapter VIII

And now, from this brief statement of the Thalean physics, are we to conclude that he recognized only a material cause of the universe? Such is the impression we receive from the reading of the First Book of Aristotle's Metaphysics. His evident purpose is to prove that the first philosophers of the Ionian school did not recognize an efficient cause. In his opinion, they were decidedly materialistic. Now to question the authority of Aristotle may appear to many an act of presumption. But Aristotle was not infallible; and nothing is more certain than that in more than one instance he does great injustice to his predecessors. 404 To him, unquestionably, belongs the honor of having made a complete and exhaustive classification of causes, but there certainly does appear something more than vanity in the assumption that he, of all the Greek philosophers, was the only one who recognized them all. His sagacious classification was simply a resumè of the labors of his predecessors. His "principles" or "causes" were incipient in the thought of the first speculators in philosophy. Their accurate definition and clearer presentation was the work of ages of analytic thought. The phrases "efficient," "formal," "final" cause, are, we grant, peculiar to Aristotle; the ideas were equally the possession of his predecessors.