Thomas Reid on Conception, Perception, and Mind-External World Relationship

Abstract

The notion of “conception” plays a central role in Thomas Reid’s theory of perceptual knowledge, although “conception” might be studied for itself as a source of knowledge. In this study, we attempt to expose systematically the several contexts where Reid deals with the source of knowledge and the kind of mental operation called “conception”. The purpose is to understand a specific aspect of the deliverances of “conception” in Reid’s theory of perception, namely, a direct relationship, not mediated by ideas, between knowing subject and external world. To understand the operation of conceiving, which is intrinsic to and constitutive of perception, is an efficient way to comprehend the nature and content of perceptual knowledge. At this step, reflections on the relationship between mind and external world, that is, mind and material world, have to be made.