Athenian_ who taught philosophy at Athens (B. C. 450), and from him we date the foundation of those brilliant and imperishable schools which secured to Athens an intellectual empire long after her political independence had died away [249]. Archelaus himself (as was the usual custom of the earlier sages) departed widely from the tenets of his master. He supposed that two discordant principles, fire and water, had, by their operation, drawn all things from chaos into order, and his metaphysics were those of unalloyed materialism. At this period, too, or a little later, began slowly to arise in Athens the sect of the Sophists, concerning whom so much has been written and so little is known. But as the effects of their lessons were not for some time widely apparent, it will be more in the order of this history to defer to a later era an examination of the doctrines of that perverted but not wholly pernicious school. XXII. Enough has been now said to convey to the reader a general notion of the prodigious rise which, in the most serene of intellectual departments, had been made in Greece, from the appearance of Solon to the lectures of Archelaus, who was the master of Socrates. With the Athenians philosophy was not a thing apart from the occupations of life and the events of history--it was not the monopoly of a few studious minds, but was cultivated as a fashion by the young and the well-born, the statesman, the poet, the man of pleasure, the votary of ambition [250]. It was inseparably interwoven with their manners, their pursuits, their glory, their decay. The history of Athens includes in itself the history of the human mind. Science and art--erudition and genius--all conspired--no less than the trophies of Miltiades, the ambition of Alcibiades--the jealousy of Sparta--to the causes of the rise and fall of Athens. And even that satire on themselves, to which, in the immortal lampoons of Aristophanes, the Athenian populace listened, exhibits a people whom, whatever their errors, the world never can see again--with whom philosophy was a pastime--with whom the Agora itself was an academe--whose coarsest exhibitions of buffoonery and caricature sparkle with a wit, or expand into a poetry, which attest the cultivation of the audience no less than the genius of the author; a people, in a word, whom the stagirite unconsciously individualized when he laid down a general proposition, which nowhere else can be received as a truism--that the common people are the most exquisite judges of whatever in art is graceful, harmonious, or sublime.