  This distinction between arguments against a Protagorean view about perception and a Protagorean view about judgement about perception is relevant to the second objection too (161d–162a). This objection (cp. Cratylus 386c) makes the point that Protagoras’ theory implies that no one is wiser than anyone else. Notably, the argument does not attack the idea that perception is infallible. Rather, it attacks the idea that the opinion or judgement that anyone forms on the basis of perception is infallible (161d3). (This is an important piece of support for Unitarianism: cp. distinction (2) above.)