For all parts of the body that we see fit to expose to the wind and air are found fit to endure it: face, feet, hands, legs, shoulders, head, according as custom invites us. For if there is a part of us that is tender and that seems as though it should fear the cold, it should be the stomach, where digestion takes place; our fathers left it uncovered, and our ladies, soft and delicate as they are, sometimes go half bare down to the navel.