Rule-consequentialism may agree with Rossian pluralism in endorsing rules against physically attacking the innocent, stealing, promise breaking, and rules requiring various kinds of loyalty and more generally doing good for others. But rule-consequentialism goes beyond Rossian pluralism by specifying an underlying unifying principle that provides impartial justification for such rules. Other moral theories try to do this too. Such theories include some forms of Kantianism (Audi 2001, 2004) and some forms of contractualism (Scanlon 1998; Parfit 2011; Levy 2013). In any case, the first way of arguing for rule-consequentialism is to argue that it specifies an underlying principle that provides impartial justification for intuitively plausible moral rules, and that no rival theory does this as well (Urmson 1953; Brandt 1967; Hospers 1972; Hooker 2000). (Attacks on this line of argument for rule-consequentialism include Stratton-Lake 1997; Thomas 2000; D.E. Miller 2000; Montague 2000; Arneson 2005; Moore 2007; Hills 2010; Levy 2014.)