Full Idea
Like hands, you don't have to know how the mind evolved to make a pretty shrewd guess at what it's for; for example, that it's to think with.
Gist of Idea
The function of a mind is obvious
Source
Jerry A. Fodor (In a Critical Condition [2000], Ch.17)
Book Reference
Fodor,Jerry A.: 'In Critical Condition' [MIT 2000], p.210
A Reaction
I like this. This is one of the basic facts of philosophy of mind, and it frequently gets lost in the fog. It is obvious that the components of the mind (say, experience and intentionality) will be better understood if their function is remembered.