Ad hominem arguments are generally dismissed on the grounds that they are not attempts to engage in rational discourse, but are rather aimed at undermining argument by diverting attention from claims made to assessments of character of persons making claims. The manner of this dismissal however is based upon an unlikely paradigm of rationality: it is based upon the presumption that our intellectual capacities are not as limited as in fact they are, and do not vary as much as they (...) do between rational people. When we understand rationality in terms of intellectual virtues, however, which recognize these limitations and provide for the complexity of our thinking, ad hominem considerations can sometimes be relevant to assessing arguments. (shrink)

Christopher Johnson has put forward in this journal the view that ad hominem reasoning may be more generally reasonable than is allowed by writers such as myself, basing his view on virtue epistemology. I review his account, as well as the standard account, of ad hominem reasoning, and show how the standard account would handle the cases he sketches in defense of his own view. I then give four criticisms of his view generally: the problems of virtue conflict, vagueness, conflation (...) of speech acts, and self-defeating counsel. I then discuss four reasons why the standard account is superior: it better fits legal reality, the account of other fallacies, psychological science, and political reality. (shrink)

Several authors have recently begun to apply virtue theory to argumentation. Critics of this programme have suggested that no such theory can avoid committing an ad hominem fallacy. This criticism is shown to trade unsuccessfully on an ambiguity in the definition of ad hominem. The ambiguity is resolved and a virtue-theoretic account of ad hominem reasoning is defended.