Confinement in dens restrains the springs of lions and wild creatures, but this does not apply to human beings, who often effect the most important works in retirement. Let a man, however, withdraw himself only in such a fashion that wherever he spends his leisure his wish may still be to benefit individual men and mankind alike, both with his intellect, his voice, and his advice. The man that does good service to the State is not only he who brings forward candidates for public office, defends accused persons, and gives his vote on questions of peace and war, but he who encourages young men in well-doing, who supplies the present dearth of good teachers by instilling into their minds the principles of virtue, who seizes and holds back those who are rushing wildly in pursuit of riches and luxury, and, if he does nothing else, at least checks their course⁠—such a man does service to the public though in a private station. Which does the most good, he who decides between foreigners and citizens (as

praetor peregrinus ), or, as praetor urbanus