In part 1 of Plato’s Meno, Socrates persuaded Meno that no mortal knows what Virtue truly is. He first attacked Meno from a logic perspective. If figures and specific variants of figures such as round or square are equal or say that blue or green or yellow are both equal, then there is no such thing as a bad virtue. It’s only from the perspective or a man’s own self standards to determine what’s good for himself. Thus, if nobody knows what to define “good virtue”, it isn’t known by anyone, surely can’t be taught.