Christopher Hookway

: T.L. Short's book argues that Peirce's early theory of signs was flawed, and that the development of his mature theories required a new start and the rejection of some fundamental doctrines from the earlier view. While agreeing that Peirce's view of signs changed and agreeing on the new developments that were of most significance, I express some doubts about Short's diagnosis of why such changes were required. I argue that the changes were required, not by internal inconsistencies in the earlier position, but rather by the need to come up with an adequate account of the role of experience in cognition

The paper offers an explanation of what reasons for belief are, following Paul Grice in focusing on the roles of reasons in the goal-directed activity of reasoning. Reasons are particularly salient considerations that we use as indicators of the truth of beliefs and candidates for belief. Reasons are distinguished from enabling conditions by being things that we should be able to attend to in the course of our reasoning, and in assessing how well our beliefs are supported. The final section argues that epistemic virtues have a role in enabling us to identify reasons and explores this by reference to the example of being observant.