Full Idea
In her late period she again reverses her thoughts on moral rationalism; …rather than a neutral rationality which fulfils desires, she argues that morality ought to be thought of as part of the standard of rationality itself.
Gist of Idea
Moral reason is not just neutral, because morality is part of the standard of rationality
Source
report of Philippa Foot (Natural Goodness [2001]) by John Hacker-Wright - Philippa Foot's Moral Thought Intro
Book Reference
Hacker-Wright,John: 'Philippa Foot's Moral Thought' [Bloomsbury 2013], p.5
A Reaction
This comes much closer to the Greek and Aristotelian concept of logos. They saw morality as inseparable from our judgements about how the world is. All 'sensible' thinking will involve what is good for humanity.
Related Idea
Idea 1575 For Aristotle logos is essentially the ability to talk rationally about questions of value [Roochnik on Aristotle]