=The Reactionaries and the Mediators.=--Meanwhile, the conservative element was making its usual attempt to adjust the unsettled conditions by suggesting a return to the old. Various schemes had been advanced, even before the sophists had come into prominence. Of these the most complete plan was that of Pythagoras (about 580-500 B. C.). By adopting an analogy from the ‘harmony’ of the celestial bodies and from the relation of the powers in the individual to each other, he arranged a definite hierarchy in society, so that each member should have his proper place, and complete harmony and social order should ensue. As the influence of the sophists began to be felt, later representatives of the reactionary movement, such as the matchless caricaturist, Aristophanes (445-380 B. C.), began to appear and inveigh against the new conditions. But the social process can never move backward, and reconstruction on some higher plane was needed to overcome the destructive tendencies of the times. To furnish this, was the task set themselves by Socrates, Plato, and Aristotle. Like the sophists, they recognized that the traditional beliefs and sanctions, the old social order, and the former ideals and content of education, had been outlived, and that the individual could not find truth and morality through an institutional system. At the same time they felt that the extreme individualism of the sophists was too negative a basis upon which to build, and that a more socialized standard of knowledge and morality must be sought. [Sidenote: ‘Knowledge’ versus ‘opinion’.] [Sidenote: The ‘dialectic’ of Socrates.]