And that most noble poet, in the sixth book before-mentioned, proves that AEneas possessed this courtesy, when he says that AEneas, then King, in order to pay honour to the dead body of Misenus, who had been the trumpeter of Hector, and afterwards accompanied AEneas, made himself ready and took the axe to assist in cutting the logs for the fire which must burn the dead body, as was their custom.

Wherefore this courtesy does indeed appear to be necessary to Youth; and therefore the noble Soul reveals it in that age, as has been said.
Again, it is necessary to this age to be Loyal.

Loyalty is to follow and to put in operation that which the Laws command, and this especially is necessary in the young man; because the adolescent, as it has been said, on account of his minority, merits ready pardon; the old man, on account of greater experience, ought to be just, but not a follower of the Law except inasmuch as his upright judgment and the Law are at one as it were; and almost without any Law he ought to be able to follow the dictates of his own just mind.

The young man is not able to do this, and it is sufficient that he should obey the Law, and take delight in that obedience; even as the before-said poet says, in the fifth book previously mentioned, that AEneas did when he instituted the games in Sicily on the anniversary of his father's death, for what he promised for the victories he loyally gave to each victor, according to their ancient custom, which was their Law.
Wherefore, it is evident that, to this age, Loyalty, Courtesy, Love, Courage, and Temperance are necessary, even as the Song says, which at present I have reasoned out; and therefore the noble Soul reveals them all..