A Nudity whose Muscles do all appear bold, and evident, ought to stand steady and without Motion; it being impossible that the Body shou'd stir the least tittle imaginable, unless one part of the Muscles, be relax'd, while their Antagonist Muscles are in Action: And 'tis evident, that the slacken'd Muscles must subside and disappear, in Proportion, as the others distend and discover themselves.