Full Idea
A moral evaluation does not stand over against the statement of a matter of fact, but rather has to do with facts about a particular subject matter, as do evaluations of such things as sight and hearing in animals.
Gist of Idea
Moral evaluations are not separate from facts, but concern particular facts about functioning
Source
Philippa Foot (Natural Goodness [2001], 1)
Book Reference
Foot,Philippa: 'Natural Goodness' [OUP 2003], p.24
A Reaction
She avoids the word 'function', and only deals with living creatures, but she uses a 'good knife' as an example, and this Aristotelian view clearly applies to any machine which has a function.