Abstract

My aim in this paper is to argue against what I call “epistemic” pessimism about moral testimony. Epistemic pessimists argue that moral testimony fails to transmit epistemic warrant as non-moral testimony does. I reject epistemic pessimism by defending theNo Difference Thesis, that there is no in principle difference between the transmission of epistemic warrant by moral and non-moral testimony. The main thrust of my argument is that there is a goodprima faciecase to be made for the thesis, namely, that it is supported by all of the major current epistemological views of testimonial warrant, both reductionist and non-reductionist. After making this case, I consider five pessimist attempts to undermine theNo Difference Thesis, and argue that none of these attempts succeeds. So, in the absence of any other compelling criticisms, we are justified in rejecting epistemic pessimism and accepting theNo Difference Thesis.