Full Idea
Expression of feeling is not a function of the meaning of sentences, but of their use, as when a teacher shouts at a pupil "7 x 7 = 49!", where the expression of feeling or attitude has nothing whatsoever to do with its meaning.
Gist of Idea
The expression of feeling in a sentence is in its use, not in its meaning
Source
Alasdair MacIntyre (After Virtue: a Study in Moral Theory [1981], Ch. 2)
Book Reference
MacIntyre,Alasdair: 'After Virtue: a Study in Moral Theory' [Duckworth 1982], p.13
A Reaction
This point is what underlies the Frege-Geach problem for emotivism, and is a very telling point. Apart from in metaethics, no one has ever put forward a theory of meaning that says it is just emotion. ...Unless it concerns speakers' intentions?