Online research in philosophy

What is the significance of empirical work on moral judgement for moral philosophy? Although the more radical conclusions that some writers have attempted to draw from this work are overstated, few areas of moral philosophy can remain unaffected by it. The most important question it raises is in moral epistemology. Given the explanation of our moral experience, how far can we trust it? Responding to this, the view defended here emphasizes the interrelatedness of moral psychology and moral epistemology. On this view, the empirical study of moral judgement does have important implications for moral philosophy. But moral philosophy also has important implications for the empirical study of moral judgement.

Most epistemologists of testimony assume that testifying requires that the beliefs to which speakers attest are identical to the beliefs that hearers accept. I argue that this characterization of testimony is misleading. Characterizing testimony in terms of duplicating speaker/hearer belief unduly resticts the variety of beliefs that might be accepted from speaker testimony.

This article draws upon the epistemology of testimony to analyse recent English case law on expert evidence. It argues that the courts are implicitly committed to an internalist epistemology and an inferentialist view of testimony, and draws a distinction between testimony which is treated as authoritative (where the fact-finder accepts the inferences drawn by the expert without attempting to assess their validity) and that which is treated as merely persuasive.

This essay shall discuss the moral feeling of being morally moved (daode gandong 道德感动) and explore its philosophical significances in understanding the nature of virtue ethics, especially that of Confucian ethics as exemplary ethics. I would like to argue that the feeling of being morally moved, similar to other feelings such as resentment or indignation, should be seen as one of the most important testimonies or manifestations of our morality or moral consciousness. It has played a very important role of moral judgment and moral cultivation in the history of Chinese moral philosophy and in its everyday moral practices. Instead of being a testimony of morality as cold laws or norms, being morally moved is a testimony to our moral virtues, and it should be a living motive of our moral actions as well.

Chapter I: Testimony: The Problem word, pdf) Chapter I defines the framework for the discussion of the epistemology of testimony. Testimony is defined, strictly, as utterances that are meant to be believed on the teller’s say-so alone, not because of supporting arguments or any like considerations. A working analysis of this notion of testimony is given, based on Grice’s analysis of “non-natural meaning” in terms of the speaker’s intention to induce belief by means of the hearer’s recognition of that intention (Grice 1957). This analysis of testimony permits us to frame the problem of the epistemology of testimony, how testimony can justify us in believing what we are told.

My book, Moral Skepticisms, is intended to serve as an introduction to moral epistemology as well as a development of my own moral epistemology. Hence, my opening chapter surveys the field of moral epistemology and the varieties of moral scepticism. The main lesson is that we should stop arguing about moral scepticism in general, because there are too many kinds that differ in too many important details.

Immanuel Kant is often regarded as an exponent of the ‘individualist’ tradition in epistemology, according to which testimony is not a fundamental source of knowledge. The present paper argues that this view is far from accurate. Kant devotes ample space to discussions of testimony and, in his lectures on logic, arrives at a distinct and stable philosophical position regarding testimony. Important elements of this position consist in (a) acknowledging the ineliminability of testimony; (b) realizing that testimony can establish empirical knowledge with certainty; (c) establishing a presumptive principle regarding the acceptance of testimony; (d) arguing for a symmetry between knowledge based on experience and knowledge based on testimony. Rejecting testimony as a fundamental source of knowledge merely on the basis that no theoretically necessary ground for its truth can be given, would, as Kant puts it, indicate ‘a lack of moral interest’. Such ‘incredulity’ would be a form of ‘logical egoism’: it demonstrates an unwillingness or inability to think oneself in the place of others, yet this we must do if we are to trust our own judgements. While Kant strongly endorses testimony as a source of empirical knowledge, he does, however, make one important restriction: ‘Propositions of reason’ (Vernunftwahrheiten), such as universal moral principles, may not be adopted on the basis of testimony. I argue that this distinction, between testimonial knowledge of empirical matters of fact and individual knowledge of propositions of reason, is an important element of Kant’s epistemology of testimony, as it explains how his strong endorsement of testimony as a source of knowledge can be squared with his equally strong demand for intellectual autonomy. Finally, I comment on the overall implications of this account for Kant’s discussion, elsewhere in his work, of the public nature of communication.

A person sometimes forms moral beliefs by relying on another person''s moral testimony. In this paper I advance a cognitivist normative account of this phenomenon. I argue that for a person''s actions to be morally good, they must be based on a recognition of the moral reasons bearing on action. Morality requires people to act from an understanding of moral claims, and consequently to have an understanding of moral claims relevant to action. A person sometimes fails to meet this requirement when she relies on another person''s moral testimony, and so there are moral limits on such reliance.

Is it legitimate to acquire one’s moral beliefs on the testimony of others? The pessimist about moral testimony says not. But what is the source of the difficulty? Here pessimists have a choice. On the Unavailability view, moral testimony never makes knowledge available to the recipient. On Unusability accounts, although moral testimony can make knowledge available, some further norm renders it illegitimate to make use of the knowledge thus offered. I suggest that Unusability accounts provide the strongest form of pessimist view. I consider and reject five Unavailability accounts. I then argue that any such view will fail. But what is the norm rendering moral testimonial knowledge unusable? I suggest it lies in the requirement that we grasp for ourselves the moral reasons behind a moral view. This demand is one testimony cannot meet, and that claim holds whatever account we offer of the epistemology of testimony. However, while appeal to this requirement forms the most plausible pessimist view, it is another question whether pessimism is correct.