 The acquaintance theorists are aware that their claim to being acquainted with acquaintance is unlikely to be of much help to those who claim not to understand what acquaintance is, and may point out that there are other, dialectical considerations in favor of their view (see Fumerton 1995: 77; Chalmers 2010: 287; and Taylor 2015). We end by summarizing a number of such considerations. While these considerations are controversial, they suggest that acquaintance theories deserve more serious attention than they have recently received. Most of these have already been covered above. First, acquaintance theorists have defended sophisticated accounts of noninferentially justified belief, and offered responses to classical arguments against the possibility of such beliefs, like the Sellarsian dilemma. Second, a view that accepts the possibility of acquaintance with universals seems able to explain not only how knowledge is possible, but also how thought itself is possible, and how a thought can be about something else. Third, the acquaintance theorist who accepts acquaintance with complex universals is in a position to provide an account of our knowledge of necessary truths. Fourth, those who accept acquaintance with logical or probability relations between propositions can give a unified treatment of foundational and nonfoundational knowledge—a unified treatment of knowledge by acquaintance and knowledge by description—and are not as vulnerable to the threat of skepticism. Fifth, the sophisticated acquaintance theory seems to accommodate two constraints on epistemic justification that many find intuitive (though not everyone accepts; many accounts end up rejecting one or the other): justification is truth-conducive, since it requires acquaintance with facts that make true (or at least make probable) our beliefs; and justification is internal in the sense that the subject has a secure perspective on the truth, or possesses a kind of assurance of the truth (or probability) via acquaintance with truth-making and probability-making relations.