This article outlines criteria for the evaluation of the argumentum ad hominem (argument against the person, or personal attack in argument) that is traditionally a part of the curriculum in informal logic. The argument is shown to be a kind of criticism which works by shifting the burden of proof in dialogue through citing a pragmatic inconsistency in an arguer's position. Several specific cases of ad hominem argumentation which pose interesting problems in analyzing this type of criticism are studied.

In all three of its manifestations, —abusive, circumstantial and tu quoque—the role of the ad hominem is to raise a doubt about the opposite party’s casemaking bona-fides.Provided that it is both presumptive and provisional, drawing such a conclusion is not a logical mistake, hence not a fallacy on the traditional conception of it. More remarkable is the role of the ad hominem retort in seeking the reassurance of one’s opponent when, on the face of it, reassurance is precisely what he (...) would seem to be ill-placed to give. Brief concluding remarks are given over to an examination of rival approaches to the ad hominem, especially those in which it is conceived of as a dialectical error. (shrink)

Since its original publication in 1975, this groundbreaking work has awakened millions of concerned men and women to the shocking abuse of animals everywhere--inspiring a worldwide movement to eliminate much of the cruel and unnecessary laboratory animal experimentation of years past. In this newly revised and expanded edition, author Peter Singer exposes the chilling realities of today's "factory farms" and product-testing procedures--offering sound, humane solutions to what has become a profound environmental and social as well as moral issue. An important (...) and persuasive appeal to conscience, fairness, decency and justice, Animal Liberation is essential reading for the supporter and the skeptic alike.--From publisher description. (shrink)

When a person acts from ignorance, he is culpable for his action only if he is culpable for the ignorance from which he acts. The paper defends the view that this principle holds, not just for actions done from ordinary factual ignorance, but also for actions done from moral ignorance. The question is raised whether the principle extends to action done from ignorance about what one has most reason to do. It is tentatively proposed that the principle holds in full (...) generality. (shrink)

Anyone who reflects on the way we go about arguing for or against moral claims is likely to be struck by the central importance we give to thinking about cases. Intuitive reactions to cases—real or imagined—are carefully noted, and then appealed to as providing reason to accept various claims. When trying on a general moral theory for size, for example, we typically get a feel for its overall plausibility by considering its implications in a range of cases. Similarly, when we (...) try to refine the statement of a principle meant to cover a fairly specific part of morality, we guide ourselves by testing the various possible revisions against a carefully constructed set of cases. And when arguing against a claim, we take ourselves to have shown something significant if we can find an intuitively compelling counterexample, and such counterexamples almost always take the form of a description of one or another case where the implications of the claim in question seem implausible. Even when we find ourselves faced with a case where we have no immediate and clear reaction, or where we have such a reaction, but others don't share it and we need to persuade them, in what is probably the most common way of trying to make progress we consider various analogies and disanalogies; that is to say, we appeal to still other cases, and by seeing what we want to say there, we discover what it is plausible to say in the original case. In these and other ways, then, the appeal to cases plays a central and ubiquitous role in our moral thinking. (shrink)

The theory of morality we can call full rule - consequentialism selects rules solely in terms of the goodness of their consequences and then claims that these rules determine which kinds of acts are morally wrong. George Berkeley was arguably the first rule -consequentialist. He wrote, “In framing the general laws of nature, it is granted we must be entirely guided by the public good of mankind, but not in the ordinary moral actions of our lives. … The rule is (...) framed with respect to the good of mankind; but our practice must be always shaped immediately by the rule.” Writers often classed as rule -consequentialists include Austin 1832; Harrod 1936; Toulmin 1950; Urmson 1953; Harrison 1953; Mabbott 1953; Singer 1955; 1961; and most prominently Brandt 1959; 1963; 1967; 1979; 1989; 1996; and Harsanyi 1977; 1982; 1993. See also Rawls 1955; Hospers 1972; Haslett 1987; 1994, ch. 1; 2000; Attfield 1987, 103-12; Barrow 1991, ch. 6; Johnson 1991; Riley 1998; 2000; Shaw 1999; and Hooker 2000. Whether J. S. Mill's ethics was rule -consequentialist is controversial. (shrink)

One familiar criticism of utilitarianism is that it is too demanding. It requires us to promote the happiness of others, even at the expense of our own projects, our integrity, or the welfare of our friends and family. Recently Ashford has defended utilitarianism, arguing that it provides compelling reasons for demanding duties to help the needy, and that other moral theories, notably contractualism, are committed to comparably stringent duties. In response, I argue that utilitarianism is even more demanding than is (...) commonly realized: both act- and rule-utilitarianism are committed to extremely stringent duties to wild animals. In this regard, utilitarianism is more demanding (and more counter-intuitive) than contractualism. (shrink)

This paper takes on several distinct but related tasks. First, I present and discuss what I will call the “Ignorance Thesis,” which states that whenever an agent acts from ignorance, whether factual or moral, she is culpable for the act only if she is culpable for the ignorance from which she acts. Second, I offer a counterexample to the Ignorance Thesis, an example that applies most directly to the part I call the “Moral Ignorance Thesis.” Third, I argue for a (...) principle—Don’t Know, Don’t Kill—that supports the view that the purported counterexample actually is a counterexample. Finally, I suggest that my arguments in this direction can supply a novel sort of argument against many instances of killing and eating certain sorts of animals. (shrink)

‘No matter what the grievance, and I'm sure that the Palestinians have some legitimate grievances, nothing can justify the deliberate targeting of innocent civilians. If they were attacking our soldiers it would be a different matter.’ (Dr. Zvi Shtauber, Israeli Ambassador to the United Kingdom, BBC Radio 4, May 1, 2003).

Assertions of statements such as ‘it’s raining, but I don’t believe it’ are standard examples of what is known as Moore’s paradox. Here I consider moral equivalents of such statements, statements wherein individuals affirm moral judgments while also expressing motivational indifference to those judgments (such as ‘hurting animals for fun is wrong, but I don’t care’). I argue for four main conclusions concerning such statements: 1. Such statements are genuinely paradoxical, even if not contradictory. 2. This paradoxicality can be traced (...) to a form of epistemic self-defeat that also explains the paradoxicality of ordinary Moore-paradoxical statements. 3. Although a simple form of internalism about moral judgment and motivation can explain the paradoxicality of these moral equivalents, a more plausible explanation can be provided that does not rely on this simple form of internalism. 4. The paradoxicality of such statements suggests a more credible understanding of the thesis that those who are not motivated by their moral judgments are irrational. (shrink)

Assertions of statements such as 'it's raining, but I don't believe it' are standard examples of what is known as Moore's paradox. Here I consider moral equivalents of such statements, statements wherein individuals affirm moral judgments while also expressing motivational indifference to those judgments. I argue for four main conclusions concerning such statements: 1. Such statements are genuinely paradoxical, even if not contradictory. 2. This paradoxicality can be traced to a form of epistemic self-defeat that also explains the paradoxicality of (...) ordinary Moore-paradoxical statements. 3. Although a simple form of internalism about moral judgment and motivation can explain the paradoxicality of these moral equivalents, a more plausible explanation can be provided that does not rely on this simple form of internalism. 4. The paradoxicality of such statements suggests a more credible understanding of the thesis that those who are not motivated by their moral judgments are irrational. (shrink)

I argue for the existence of a ‘ratcheting-up effect’: the behavior of moral saints serves to increase the level of moral obligation the rest of us face. What we are morally obligated to do is constrained by what it would be reasonable for us to believe we are morally obligated to do. Moral saints provide us with a special kind of evidence that bears on what we can reasonably believe about our obligations. They do this by modeling the level of (...) sacrifice a person can realistically bear. Exposure to moral saints thus ‘ratchets-up’ our obligations by combating a type of ignorance that would otherwise defeat those obligations. (shrink)

In 1972, the young philosopher Peter Singer published "Famine, Affluence and Morality," which rapidly became one of the most widely discussed essays in applied ethics. Through this article, Singer presents his view that we have the same moral obligations to those far away as we do to those close to us. He argued that choosing not to send life-saving money to starving people on the other side of the earth is the moral equivalent of neglecting to save drowning children because (...) we prefer not to muddy our shoes. If we can help, we must--and any excuse is hypocrisy. Singer's extreme stand on our moral obligations to others became a powerful call to arms and continues to challenge people's attitudes towards extreme poverty. Today, it remains a central touchstone for those who argue we should all help others more than we do. As Bill and Melinda Gates observe in their foreword, in the age of today's global philanthropy, Singer's essay is as relevant now as it ever was. This attractively packaged, concise edition collects the original article, two of Singer's more recent popular writings on our obligations to others around the world, and a new introduction by Singer that discusses his current thinking. (shrink)

Walton gives a clear method for analyzing and evaluating cases of ad hominem arguments found in everyday argumentation.

Collection of historical, theoretical and applied articles on the ethical considerations in the treatment of animals by human beings.

This paper’s first section invokes a relevant meta-ethical principle about what a moral theory needs in order to be plausible and superior to its rivals. In subsequent sections, I try to pinpoint exactly what the demandingness objection has been taken to be. I try to explain how the demandingness objection developed in reaction to impartial act-consequentialism’s requirement of beneficence toward strangers. In zeroing in on the demandingness objection, I distinguish it from other, more or less closely related, objections. In particular, (...) I discuss arguments put forward by Bernard Williams concerning integrity, Samuel Scheffler on prerogatives, and Liam Murphy on fairness. The final part of the paper acknowledges some ways in which vagueness bedevils my own rule-consequentialism’s rules about doing good and preventing disasters. (shrink)