Full Idea
My basic premises lead to the conclusion of ontological monism coupled with conceptual dualism (like Spinoza, except that he denied mental causation).
Clarification
That is, one thing exists, but understood in two different ways
Gist of Idea
The correct conclusion is ontological monism combined with conceptual dualism
Source
Donald Davidson (Davidson on himself [1994], p.231)
Book Reference
'A Companion to the Philosophy of Mind', ed/tr. Guttenplan,Samuel [Blackwell 1995], p.231
A Reaction
'Conceptual dualism' implies no real difference, but 'property dualism' is better, suggesting different properties when viewed from different angles.