 Neutral monism holds out the alluring promise that such constructions can be found for all of the inferred entities of physics, of psychology, and of common sense. All of these bodies of knowledge are preserved, but at a hugely reduced epistemic cost. These are the considerations that drive Russell to embrace neutral monism: it is a perfect fit with his longstanding commitment to the program of logical construction. An added benefit of substituting constructions of neutral entities for physical and mental entities is an elegant solution to the mind-body problem.