 By contrast, Russellian monism seems to avoid those costs of both traditional physicalism and traditional dualism. On Russellian monism, the properties that constitute consciousness—quiddities and (perhaps) structural properties—play indispensable roles in physical causation. Consciousness —or at least the components of consciousness —is thus integrated into physical causation. Yet the distinctive features of consciousness are neither disregarded nor distorted. Those features are attributed to quiddities and their special (e.g., constitutive) relationship to consciousness.