Evidentialism is a theory of knowledge the essence of which is the traditional idea that the justification of factual knowledge is entirely a matter of evidence. The authors defend this theory, arguing evidentialism is an asset virtually everywhere in epistemology, from getting started to refuting skepticism.

Evidentialism is a popular theory of epistemic justification, yet, as early proponents of the theory Earl Conee and Richard Feldman admit, there are many elements that must be developed before Evidentialism can provide a full account of epistemic justification, or well-founded belief. It is the aim of this book to provide the details that are lacking; here McCain moves past Evidentialism as a mere schema by putting forward and defending a full-fledged theory of epistemic justification. In this book McCain offers novel approaches to several elements of well-founded belief. Key among these are an original account of what it takes to have information as evidence, an account of epistemic support in terms of explanation, and a causal account of the basing relation (the relation that one's belief must bear to her evidence in order to be justified) that is far superior to previous accounts. The result is a fully developed Evidentialist account of well-founded belief.

Work on the norms of belief in epistemology regularly starts with two touchstone essays: W.K. Clifford's "The Ethics of Belief" and William James's "The Will to Believe." Discussing the central themes from these seminal essays, Evidentialism and the Will to Believe explores the history of the ideas governing evidentialism. As well as Clifford's argument from the examples of the shipowner, the consequences of credulity and his defence against skepticism, this book tackles James's conditions for a genuine option and the structure of the will to believe case as a counter-example to Clifford's evidentialism. Exploring the question of whether James's case successfully counters Clifford's evidentialist rule for belief, this study captures the debate between those who hold that one should proportion belief to evidence and those who hold that the evidentialist norm is too restrictive. More than a sustained explication of the essays, it also surveys recent epistemological arguments to evidentialism. But it is by bringing Clifford and James into fruitful conversation for the first time that this study presents a clearer history of the issues and provides an important reconstruction of the notion of evidence in contemporary epistemology.

In this ground-breaking book, leading epistemologists challenge and refine evidentialism, the view that epistemic justification for belief is determined solely by considerations pertaining to one's evidence. Earl Conee and Richard Feldman, the leading advocates of evidentialism, respond to each essay in this engaging and illuminating debate.

This volume explores evidentialism, a major theory of epistemic justification. It contains more than 20 papers that examine its nuances, its challenges, as well as its future directions. Written by leading and up-and-coming epistemologists, the papers cover a wide array of topics related to evidentialism. The contributors present both sides of the theory: some are advocates of evidentialism, while others are critics. This provides readers with a comprehensive, and cutting-edge, understanding of this epistemic theory. Overall, the book is organized into six parts: The Nature of Evidence, Understanding Evidentialism, Problems for Evidentialism, Evidentialism and Social Epistemology, New Directions for Evidentialism, and Explanationist Evidentialism. Readers will find insightful discussion on such issues as the ontology of evidence, phenomenal dogmatism, how experiences yield evidence, the new evil demon problem, probability, norms of credibility, intellectual virtues, wisdom, epistemic justification, and more. This title provides authoritative coverage of evidentialism, from the latest developments to the most recent philosophical criticisms. It will appeal to researchers and graduate students searching for more information on this prominent epistemological theory.

The question of whether it is ever permissible to believe on insufficient evidence has once again become a live question. Greater attention is now being paid to practical dimensions of belief, namely issues related to epistemic virtue, doxastic responsibility, and voluntarism. In this book, McCormick argues that the standards used to evaluate beliefs are not isolated from other evaluative domains. The ultimate criteria for assessing beliefs are the same as those for assessing action because beliefs and actions are both products of agency. Two important implications of this thesis, both of which deviate from the dominant view in contemporary philosophy, are 1) it can be permissible (and possible) to believe for non-evidential reasons, and 2) we have a robust control over many of our beliefs, a control sufficient to ground attributions of responsibility for belief.

The fundamental question of the ethics of belief is "What ought one to believe?" According to the traditional view of evidentialism, the strength of one's beliefs should be proportionate to the evidence. Conventional ways of defending and challenging evidentialism rely on the idea that what one ought to believe is a matter of what it is rational, prudent, ethical, or personally fulfilling to believe. Common to all these approaches is that they look outside of belief itself to determine what one ought to believe. In this book Jonathan Adler offers a strengthened version of evidentialism, arguing that the ethics of belief should be rooted in the concept of belief—that evidentialism is belief's own ethics. A key observation is that it is not merely that one ought not, but that one cannot, believe, for example, that the number of stars is even. The "cannot" represents a conceptual barrier, not just an inability. Therefore belief in defiance of one's evidence (or evidentialism) is impossible. Adler addresses such questions as irrational beliefs, reasonableness, control over beliefs, and whether justifying beliefs requires a foundation. Although he treats the ethics of belief as a central topic in epistemology, his ideas also bear on rationality, argument and pragmatics, philosophy of religion, ethics, and social cognitive psychology.