watchfulness in the rulers, or whether this other which I am mentioning, and which is found in children and women, slave and freeman, artisan, ruler, subject,—the quality, I mean, of every one doing his own work, and not being a busybody, would claim the palm—the question is not so easily answered. Certainly, he replied, there would be a difficulty in saying which. Then the power of each individual in the State to do his own work appears to compete with the other political virtues, wisdom, temperance, courage. Yes, he said. And the virtue which enters into this competition is justice? Exactly. Let us look at the question from another point of view: Are not the rulers in a State those to whom you would entrust the office of determining suits at law? Certainly. And are suits decided on any other ground but that a man may neither take what is another’s, nor be deprived of what is his own? Yes; that is their principle. Which is a just principle? Yes. Then on this view also justice will be admitted to be the having and doing what is a man’s own, and belongs to him? Very true. Think, now, and say whether you agree with me or not. Suppose a carpenter to be doing the business of a cobbler, or a cobbler of a carpenter; and suppose them to exchange their implements or their duties, or the same person to be doing the work of both, or whatever be the change; do you think that any great harm would result to the State? Not much. But when the cobbler or any other man whom nature

It appears to me that the justice which subsists among men, may be called the mother and the nurse of the other virtues. For without this a man can...