In this commentary, I would like to make two points. The first point is concerned with the typology of the concept of “sign.” All of Gasparyan’s examples of signs are conventional signs, ….

I argue that a radical constructivist approach might focus on providing us with what I call “tamed heuristics.” This would make our fast and intuitive evaluation more reliable in that it leads ….

The book presents papers from leading proponents of realist, relativist, and constructivist positions in epistemology and the philosophy of language and ethics.