Varieties Of Realism by Rom Harré

A Rationale for the Natural Sciences

This book surveys and distinguishes competing forms of realism in philosophy of science and metaphysics, diagnosing how naive, scientific, semantic and metaphysical varieties treat the relation between theory, observation and the world; it argues for a reconciliatory, critical realist stance that upholds the reality of entities and structures posited by successful science while acknowledging the theory‑ladenness of observation, the constructive role of concepts and models, and the need for an epistemically modest account of how our representations track independently existing phenomena.