 On the face of it, Ross is at odds with moral philosophers like Henry Sidgwick who take the systematization and correction of common-sense morality as one of the main roles of ethical theorizing (Sidgwick 1907: 77). Sidgwick, for example, holds that “the philosopher seeks unity of principle, and consistency of method” (even if this leads to revision of common-sense thinking) (Sidgwick 1907, 6) and that the role of the moral philosopher is to ‘enunciate, in full breadth and clearness, those primary intuitions of Reason, by the scientific application of which the common moral thought of mankind may be at once systematised and corrected’ (Sidgwick 1907, 373–74).