221. Let choice of intercourse come next. Let us link ourselves with older men of approved goodness. For as the companionship of people of our own age is the pleasanter, so that of our elders is the safer. By their guidance and the conduct of their lives they give colour to the character of younger men, and tinge them as it were with the deep purple of probity. For if they who are ignorant of a locality are very glad to take a journey in the company of skilled guides, how much more ought young men to enter on the path of life, which is new to them, in the company of old men; so that they may not go wrong, and turn aside from the true path of virtue. For nothing is better than to have the same men both to direct us in life, and also to be witnesses of how we live.