The discussion of the utility of the farm leads Agnolo to praise the pleasure and profit to be derived from life in the Villa.

But at the same time a town-house has to be maintained; and it is here that the sons of the family should be educated, so that they may learn caution, and avoid vice by knowing its ugliness.

In order to meet expenses, some trade must be followed, silk or wool manufacture being preferred; and in this the whole family should join, the head distributing work of various kinds to his children, as he deems most fitting, and always employing them rather than strangers.

Thus we get the three great elements of the Florentine citizen's life: the _casa_, or town-house, the _villa_, or country-farm, and the _bottega_, or place of business.

What follows is principally concerned with the details of economy.