Before, however, we proceed further, a fundamental difficulty must be removed which has probably some time since suggested itself to the reader. If a man thinks it reasonable to seek his own interest, it is clear that he cannot himself disapprove of any conduct that comes under this principle or approve of the opposite. And hence it may appear that the pleasures and pains of conscience cannot enter into the calculation whether a certain course of conduct is or is not in accordance with Rational Egoism, because they cannot attach themselves in the egoist’s mind to any modes of action which have not been already decided, on other grounds, to be reasonable or the reverse. And this is to a certain extent true; but we must here recur to the distinction (indicated in Book i. chap. iii. § 1) between the general impulse to do what we believe to be reasonable, and special sentiments of liking or aversion for special kinds of conduct, independent of their reasonableness. In the moral sentiments as they exist in ordinary men, these two kinds of feeling are indistinguishably blended; because it is commonly believed that the rules of conduct to which the common moral sentiments are attached are in some way or other reasonable. We can, however, conceive the two separated: and in fact, as was before said, we have experience of such separation whenever a man is led by a process of thought to adopt a different view of morality from that in which he has been trained; for in such a case there will always remain in his mind some quasi-moral likings and aversions, no longer sustained by his deliberate judgment of right and wrong. And thus there is every reason to believe that most men, however firmly they might adopt the principles of Egoistic Hedonism, would still feel sentiments prompting to the performance of social duty, as commonly recognised in their society, independently of any conclusion that the actions prompted by such sentiments were reasonable and right. For such sentiments would always be powerfully supported by the sympathy of others, and their expressions of praise and blame, liking and aversion: and since it is agreed that the conduct commonly recognised as virtuous is _generally_ coincident with that which enlightened self-love would dictate, a rational egoist’s habits of conduct will be such as naturally to foster these (for him) ‘quasi-moral’ feelings. The question therefore arises--not whether the egoist should cherish and indulge these sentiments up to a certain point, which all would admit--but whether he can consistently encourage them to grow to such a pitch that they will always prevail over the strongest opposing considerations; or, to put it otherwise, whether prudence requires him to give them the rein and let them carry him whither they will. We have already seen ground for believing that Rational Self-love will best attain its end by limiting its conscious operation and allowing free play to disinterested