How absolutely necessary a thorough Insight into the Heart and Passions of Man is to a Writer of Characters, will be more evident by descending to some Particulars, and pointing out some of those nice Circumstances, which a Writer of Characters must accurately observe, and by which his Capacity in this Way may be easily judg’d of. It must be observ’d then, that the Heart of Man is frequently actuated by more Passions than one: And as the same Object does, by its different Position, afford to the Spectator different Representations, so does the same Affection of the Mind, by exerting it self after a different manner, lay a real Foundation for so many distinct Characters. The under Passions may, by their various Operations, cause some Diversity in the Colour and Complexion of the Whole, but ’tis the Master-Passion which must determine the Character. Since therefore the under Parts of a Character are not essential, they may or may not be reciprocal. A covetous Man may be impudent, or he may have some share of Modesty left: On the other Hand, an impudent Man may be generous, or his Character may be stain’d by Avarice. And therefore to make the Features of one Virtue or Vice enter, as under Parts, into the Character of another Virtue or Vice, is so far from being a Transgression of the Nature of Things, that, on the contrary, all the Beauty of _Characteristic-Writing_, and all the Beauty which arises from the Variety of an agreeable Mixture, entirely depends on _this_. The main Difficulty consists in making the Master-Passion operate so conspicuously throughout the Whole, as that the Reader may, in every step of the Performance, immediately discover it. The Truth of it is, that there are some Affections of the Mind, which not only constitute of themselves a distinct Virtue or Vice, but are also the Foundation of many others. Avarice is of this extensive Nature; it constitutes, of it self, a distinct Character, and it enters into the Competition of several others. St. _Paul_ says, that _the love of money is the root of all evil_; which Maxim the spurious _Phocylides_ has express’d in the following Verse, Ἡ φιλοχρημοσύνη μήτηρ κακότητος ἁπάσης.