Full Idea
One reason why it is highly misleading to talk of a logical gulf between value and fact....is that we cannot characterize the social life of a tribe in their factual terms and escape their evaluations.
Gist of Idea
The value/fact logical gulf is misleading, because social facts involve values
Source
Alasdair MacIntyre (A Short History of Ethics [1967], Ch.10)
Book Reference
MacIntyre,Alasdair: 'A Short History of Ethics' [Routledge 1967], p.124
A Reaction
Personally I like the objection that facts about functions cannot avoid the value of good functions, but this is very good. It is much better than simply trying to find a specific counterexample, such as facts about promises. Values just are facts.