Full Idea
Mental states have causal powers.
Gist of Idea
Mental states have causal powers
Source
Jerry A. Fodor (LOT 2 [2008], Ch.2.3)
Book Reference
Fodor,Jerry A.: 'LOT 2: the Language of Thought Revisited' [OUP 2008], p.48
A Reaction
I quote this because it gives you the link between a general account of causal powers as basic to reality, and an active account of what the mind is. It has to be a key link in a decent modern unified account of the world. See Idea 12638.
Related Idea
Idea 12638 If concepts have sense, we can't see the connection to their causal powers [Fodor]