 Socrates argues that one who knows a field knows it whole (531e–532a). This denial of the knowledge of particulars in their particularity also appears at Charmides 166e; Phaedo 97d; Republic 334a, 409d. It is not that what is known about an individual thing cannot transfer to other things of the same kind; rather that the act of treating an object as unique means attending to and knowing those qualities of it that do not transfer, knowing them as nontransferable qualities. This attitude toward particulars qua particulars is an obstacle to every theoretical expertise. It is the epistemic analogue to the irrational one-on-one erotic bond that Aristophanes describes in Plato’s Symposium (191c-d).