Full Idea
Justice on the elementary level is good will among parties of approximately equal power to come to terms with one another, and to compel parties of lesser power to reach a settlement among themselves.
Gist of Idea
Basic justice is the negotiation of agreement among equals, and the imposition of agreement
Source
Friedrich Nietzsche (On the Genealogy of Morals [1887], II.§08)
Book Reference
Nietzsche,Friedrich: 'On the Genealogy of Morals/ Ecce Homo', ed/tr. Kaufmann,Walter [Vintage 1969], p.70
A Reaction
This pinpoints a key problem with the social contract as a moral theory - that it requires equals, and recognises only terror of superiors, and indifference to useless inferiors who have nothing to offer (paraplegics and animals).