In this chapter, I make two major claims, which conflict with most, if not all readings of 1.4.2, First, the vulgar perspective should be divided into two sections, which correspond to, respectively, parts 2 and 3 of Hume's system of identity. We may refer to these sections as vulgar perspective I, and vulgar perspective II. Second, neither vulgar perspective I nor II should be confused with the three accounts of perfect identity that were explicated in Part II of this book.