As regards action, he ought above all things to keep his men well organized and drilled, to follow incessantly the chase, by which he accustoms his body to hardships, and learns something of the nature of localities, and gets to find out how the mountains rise, how the valleys open out, how the plains lie, and to understand the nature of rivers and marshes, and in all this to take the greatest care.
E, quanto alle opere, oltre al tenere bene ordinati et esercitati li sua, debbe stare sempre in sulle caccie, e mediante quelle assuefare el corpo a' disagi; e parte imparare la natura de' siti, e conoscere come surgono e' monti, come imboccano le valle, come iacciono e' piani, et intendere la natura de' fiumi e de' paduli, et in questo porre grandissima cura.