In this book the author assesses the main arguments against the possibility of knowledge, and defends a reliabilist theory of knowledge that belongs firmly in the truth-tracking tradition.

This book explores the nature of scepticism, asking when it is legitimate, for example as the driver of new ideas, and when it is problematic. It also tackles how scepticism is related to contemporary social and political phenomena, such as fake news, and examines a radical form of scepticism which maintains that knowledge is impossible.

Provides a sustained interpretation of Part 4 of Book 1 of Hume's Treatise, arguing that Hume uses our reactions to the sceptical arguments as evidence in favor of his model of the mind.

A defense of the view that philosophical propositions are true in some perspectives and false in others, arguing that the rationalist, intuition-driven method of acquiring basic beliefs favored by analytic philosophy is not epistemically superior to such alternate belief-acquiring methods as religious revelation and the ritual use of hallucinogens. The grand and sweeping claims of many relativists might seem to amount to the argument that everything is relative—except the thesis of relativism. In this book, Steven Hales defends relativism, but in a more circumscribed form that applies specifically to philosophical propositions. His claim is that philosophical propositions are relatively true—true in some perspectives and false in others. Hales defends this argument first by examining rational intuition as the method by which philosophers come to have the beliefs they do. Analytic rationalism, he claims, has a foundational reliance on rational intuition as a method of acquiring basic beliefs. He then argues that there are other methods that people use to gain beliefs about philosophical topics that are strikingly analogous to rational intuition and examines two of these: Christian revelation and the ritual use of hallucinogens. Hales argues that rational intuition is not epistemically superior to either of these alternative methods. There are only three possible outcomes: we have no philosophical knowledge (skepticism); there are no philosophical propositions (naturalism); or there are knowable philosophical propositions, but our knowledge of them is relative to doxastic perspective. Hales defends relativism against the charge that it is self-refuting and answers a variety of objections to this account of relativism. Finally, he examines the most sweeping objection to relativism: that philosophical propositions are not merely relatively true, because there are no philosophical propositions—all propositions are ultimately empirical, as the naturalists contend. Hales's somewhat disturbing conclusion—that intuition-driven philosophy does produce knowledge, but not absolute knowledge—is sure to inspire debate among philosophers.

He author argues that the sceptical thesis is motivated by a persistent philosophical problem that calls the very possibility of knowledge about the external world into question, and that the sceptical thesis is the only acceptable answer to this problem as traditionally posed.

How do you know the world around you isn't just an elaborate dream, or the creation of an evil neuroscientist? If all you have to go on are various lights, sounds, smells, tastes and tickles, how can you know what the world is really like, or even whether there is a world beyond your own mind? Questions like these -- familiar from science fiction and dorm room debates -- lie at the core of venerable philosophical arguments for radical skepticism: the stark contention that we in fact know nothing at all about the world, that we have no more reason to believe any claim -- that there are trees, that we have hands -- than we have to disbelieve it. Like non-philosophers in their sober moments, philosophers, too, find this skeptical conclusion preposterous, but they're faced with those famous arguments: the Dream Argument, the Argument from Illusion, the Infinite Regress of Justification, the more recent Closure Argument. If these can't be met, they raise a serious challenge not just to philosophers, but to anyone responsible enough to expect her beliefs to square with her evidence. What Do Philosophers Do? takes up the skeptical arguments from this everyday point of view, and ultimately concludes that they don't undermine our ordinary beliefs or our ordinary ways of finding out about the world. In the process, Maddy examines and evaluates a range of philosophical methods -- common sense, scientific naturalism, ordinary language, conceptual analysis, therapeutic approaches -- as employed by such philosophers as Thomas Reid, G. E. Moore, Ludwig Wittgenstein, and J. L. Austin. The result is a revealing portrait of what philosophers do, and perhaps a quiet suggestion for what they should do, for what they do best.

Every known religious or explicitly irreligious outlook is contested by large contingents of informed and reasonable people. Many philosophers have argued that reflection on this fact should lead us to abandon confident religious or irreligious belief and to embrace religious skepticism. John Pittard critically assesses the case for such disagreement-motivated religious skepticism. While the book focuses on religious disagreement, it makes a number of significant contributions to the more general discussion of the rational significance of disagreement as well.

Kurtz argues that there are objective standards for judging truth claims in science, ethics, and philosophy. Of special interest is the application of the new skepticism to paranormal claims such as reincarnation and faith healing, and to religious beliefs, ethics and politics.

Tracking Truth presents a unified treatment of knowledge, evidence, and epistemological realism and anti-realism about scientific theories. A wide range of knowledge-related phenomena, especially but not only in science, strongly favour the idea of tracking as the key to what makes something knowledge. A subject who tracks the truth - an idea first formulated by Robert Nozick - has the ability to follow the truth through time and changing circumstances. Epistemologistsrightly concluded that Nozick's theory was not viable, but a simple revision of that view is not only viable but superior to other current views. In this new tracking account of knowledge, in contrast to the old view, knowledge has the property of closure under known implication, and troublesome counterfactualsare replaced with well-defined conditional probability statements. Of particular interest are the new view's treatment of skepticism, reflective knowledge, lottery propositions, knowledge of logical truth, and the question why knowledge is power in the Baconian sense.Ideally, evidence indicates a hypothesis and discriminates it from other possible hypotheses. This is the idea behind a tracking view of evidence, and Sherrilyn Roush provides a defence of a confirmation theory based on the Likelihood Ratio. The accounts of knowledge and evidence she offers provide a deep and seamless explanation of why having better evidence makes one more likely to have knowledge. Roush approaches the question of epistemological realism about scientific theories through thequestion what is required for evidence, and rejects both traditional realist and traditional anti-realist positions in favour of a new position which evaluates realist claims in a piecemeal fashion according to a general standard of evidence. The results show that while anti-realists were immodest indeclaring a priori what science could not do, realists were excessively sanguine about how far our actual evidence has so far taken us.

Part I. Knowledge: 1. Conclusive reasons 2. Epistemic operators 3. The pragmatic dimension of knowledge 4. The epistemology of belief 5. Two conceptions of knowledge: rational vs. reliable belief Part II. Perception and Experience: 6. Simple seeing 7. Conscious experience 8. Differences that make no difference 9. The mind's awareness of itself 10. What good is consciousness Part III. Thought and Intentionality: 11. Putting information to work 12. If you can't make one, you don't know how it works 13. The nature of thought 14. Norms and the constitution of the mental 15. Minds, machines, and money: what really explains behavior.