The instruments of education everywhere found to be in harmony with the Greek conception of life and culture were essentially twofold,--"music" ([Greek: mousikê]), or literary and artistic culture, for the mind, and systematic gymnastic ([Greek: gymnastikê]) for the body. Plato, in the _Republic_, shows that the latter, as well as the former, affects the character, and doubtless, though not formulated, this was generally more or less vaguely felt. But Greek gymnastic was really an individual training, and therefore made only indirectly for the aim of cultivating the social bonds of citizenship. Ancient Greece had nothing corresponding in value in this respect to the organized games which form so important a feature in the school life of modern England. The "musical" training was essentially in the national literature and music of Greece, and this could obviously be carried to very different lengths. The elements of mathematical science were also commonly taught. The essential purpose throughout was the development of the character of a loyal citizen of Athens. As Athenian culture advanced, increasing attention was paid to diagogic studies, especially in the ephebic age, with a corresponding decrease of attention to merely physical pursuits; hence the complaints of such satirists as Aristophanes of a growing luxury, effeminacy and corruption of youths: complaints apparently based on a comparison of the worst features of the actual present with an idealized and imaginative picture of the virtues of the past. Such comparison is, indeed, implicit in much of Plato and Aristotle as well as in Aristophanes. But a disintegrating force was already at work in the educational system of Greece which Plato and Aristotle vainly opposed. This was the rhetorical training of the Sophists, the narrowly practical and individualistic aim of which was entirely out of harmony with the older Greek ideals of life and culture. In a democratic city-state the orator easily became a demagogue, and generally oratory was the readiest path to influence and power. Thus oratory opened the way to personal ambition, and young men who were moved by that passion eagerly attended the Sophist schools where their dominant motive was strengthened.