ABSTRACT
The first version of Russellian monism (RM1) starts off from some ideas from John Locke's An Essay Concerning Human Understanding. The second version of Russellian monism (RM2) starts off from some ideas set out in David Lewis's paper "Ramseyan Humility". The third version of Russellian monism starts off from a famous idea from Russell's The Analysis of Matter—namely, that "the aim of physics, consciously or unconsciously, has always been to discover what we may call the causal skeleton of the world". The final version starts off from some ideas set out in Thomas Nagel's The View from Nowhere, particularly in passages such as the following: The difference between the mental and the physical is far greater than the difference between the electrical and the mechanical. RM1 makes an assumption about our epistemic situation that is implausible. RM2 makes no such assumption but has no application to philosophy of mind.
