regard as the principal blessings that philosophy teaches. For to enjoy prosperity nobly shows a man; and to enjoy it without exciting envy shows a moderate man; and to conquer the passions by reason argues a wise man; and it is not everybody who can keep his temper in control. And those who can unite political ability with philosophy I regard as perfect men, for I take them to attain two of the greatest blessings, serving the state in a public capacity, and living the calm and tranquil life of philosophy. For, as there are three kinds of life, * the practical, * the contemplative, * and the life of enjoyment, and of these three the one devoted to enjoyment is a paltry and animal life, and the practical without philosophy an unlovely and harsh life, and the contemplative without the practical a useless life, so we must endeavour with all our power to combine public life with philosophy as far as circumstances will permit. Such was the life led by Pericles, by Archytas of Tarentum, by Dion of Syracuse, by Epaminondas the Theban, one of whom was a disciple of Plato (viz., Dion). And as to education, I do not know that I need dwell any more on it. But in addition to what I have said, it is useful, if not necessary, not to neglect to procure old books, and to make a collection of them, as is usual in agriculture. For the use of books is an instrument in education, and it is profitable
§ xi. Exercise also ought not to be neglected, but we ought to send our boys to the master of the gymnasium to train them duly, partly with a view to carrying the body well, partly with a view to strength. For good habit of body in boys is the foundation of a good old age. For as in fine weather we ought to lay up for winter, so in youth one ought to form good habits and live soberly so as to have a reserve stock of strength for old age. Yet ought we to husband the exertions of the body, so as not to