Reasons for action, morality and

Your friend asks if there is any good reason not to order the cod. You both know that the cod is healthier and tastier than anything else on the menu, so this is not a question about health or taste. You take this to be some kind of moral question. She might be asking a substantive question (e.g., she might want to know if morality tells us not to order the cod given their low numbers). She might instead be asking a question about the rational authority of morality (see Rationalism in Ethics). If morality says not to order the cod, do moral reasons help determine what there is overall reason to do? We shall focus on this question.