Abstract
I. Although there has been considerable recent dispute as to what Socrates meant by saying that Virtue is Knowledge, if the claim is, as it is sometimes taken to be, that knowledge of the essential nature of virtue is sufficient for virtuous behavior, then it is only necessary to point out what seem to be quite obvious counter in stances. The fact of moral weakness, coupled with what large numbers of scientists and lawyers and plain men now believe about the capacity of human beings for self-control, demonstrates that a man can surely know the good and yet fail to do the virtuous thing. What, then, is left of the view that Virtue is Knowledge?