Full Idea
Morality is thought of as a kind of tacit legislation by the community.
Gist of Idea
Morality is seen as tacit legislation by the community
Source
Philippa Foot (Utilitarianism and the Virtues [1985], p.75)
Book Reference
Foot,Philippa: 'Moral Dilemmas' [OUP 2002], p.75
A Reaction
Foot presents this as a utilitarian doctrine, because the tacit legislation is felt to produce the best outcomes. This is Nietzsche's good and evil, beyond which he wished to go (presumably following other values).