How, then, is this view to be reconciled with the unreserved admission of 'utility' as the 'criterion' of right and wrong? One answer is that Mackintosh fully accepts Hartley's doctrine of association. He even criticises previous philosophers for not pushing it far enough. He says that association, instead of merely combining a 'thought' and a 'feeling,' 'forms them into a new compound, in which the properties of the component parts are no longer discoverable, and which may itself become a substantive principle of human virtue.'[580] The question of origin, therefore, is different from the question of nature. He follows Hartley in tracing the development of various desires, and in showing how the 'secondary desires' are gradually formed from the primitive by transference to different objects.[581] We must start from feelings which lie beneath any intellectual process, and thus the judgment of utility is from the first secondary. We arrive at the higher feelings which are 'as independent as if they were underived,'[582] and yet, as happiness has been involved at every stage as an end of each desire, it is no wonder that the ultimate result should be to make the general happiness the end. The coincidence, then, of the criterion with the end of the moral sentiments is 'not arbitrary,' but arises necessarily from 'the laws of human nature and the circumstances in which mankind are placed.'[583] Hence we reach the doctrine which 'has escaped Hartley as well as every other philosopher.'[584] That doctrine is that the moral faculty is one; it is compound, indeed, in its origin; but becomes an independent unit, which can no longer be resolved even in thought into its constituent elements.

The doctrine approximates, it would seem, to Mill's; but was all the more unpalatable to him on that account. The agreement implies plagiarism, and the difference hopeless stupidity. To Mill Bentham was the legitimate development of Hartley, while to Mackintosh Bentham was the plausible perverter of Hartley. Mill regarded Mackintosh as a sophist, whose aim was to mislead honest Utilitarians into the paths of orthodoxy, and who also ignored the merits of Mill himself. 'It was Mr. Mill,' he says, 'who first made known the great importance of the principle of the indissoluble association';[585] 'Mr. Mill' who had taken up Hartley's speculations and 'prosecuted the inquiry to its end';[586] 'Mr. Mill' who explained affections and motives and dispositions;[587] and 'Mr. Mill' who had cleared up mistakes about classification which 'had done more to perpetuate darkness on the subject of mind than any other cause, perhaps than all other causes taken together.'[588] Sir James blundered because he had not read Mill's book, as he pretended to have done. Mill does not say all this from vanity; he is simply stating an obvious matter of fact.

Mill's polemic against the Moral Sense theory, even against a moral sense produced by association, reveals the really critical points of the true Utilitarian doctrine. Mill would cut down the moral sense root and branch. The 'moral sense' means a 'particular faculty' necessary to discern right and wrong. But no particular faculty is necessary to discern 'utility.'[589] Hence the distinction between the 'criterion' and the 'moral sentiments' is absurd. The utility is not the 'criterion' of the morality but itself constitutes the morality. To say that conduct is right, according to the Utilitarians, is the same thing as to say that it produces happiness. If the moral sense orders conduct opposed to the criterion, it is so far bad. If it never orders such conduct, it is superfluous. Happiness, as with Bentham, is a definite thing—a currency of solid bullion; and 'virtue' means nothing except as calculated in this currency. Mill, again, like Bentham, regards the 'utility' principle as giving the sole 'objective' test. The complaint that it sanctions 'expediency' is a simple fallacy.

If you do not love virtue 'for its own sake,' said Mackintosh, you will break a general law wherever the law produces a balance of painful consequences. Mill replies with great vigour.[590] All general rules, it is true, imply exceptions, but only when they conflict with the supreme rule. 'There is no exception to a rule of morality,' says Mill, 'but what is made by a rule of morality.'[591] There are numerous cases in which the particular laws conflict; and one law must then be broken. The question which to break must then be decided by the same unequivocal test, 'utility.' If a rule for increasing utility diminishes utility in a given case, it must be broken in that case. Mackintosh's Fletcher of Saltoun illustrates the point.[592] What is the 'base' thing which Fletcher would not do to save his country? Would he not be the basest of men if he did not save his country at any cost? To destroy half a population and reduce the other half to misery has been thought a sacrifice not too great for such an end. Would not Mackintosh himself allow Fletcher, when intrusted with an important fortress, to sacrifice the lives and properties of innocent people in defence of his position?[593] What, then, does the love of virtue 'for its own sake' come to? If you refuse to save your country, because you think the means base, your morality is mischievous, that is, immoral. If, on the other hand, you admit that the means cease to be base, the supposed supremacy is an empty brag. The doctrine is then verbally maintained, but interpreted so as to conform to the criterion of utility. In other words, Mackintosh cannot reconcile his admission of utility as a 'criterion' with his support of a moral sense entitled to override the criterion. Mackintosh's moral sense is meant to distinguish the moral motive from 'expediency.' To this, again, Mill has a very forcible answer. A man is blameable who makes exceptions to laws in his own private interest. But if a man consistently and invariably acted for the 'greatest happiness of the greatest number,' and paid no more attention to his own happiness than to other people's, he would certainly have a very lofty and inflexible test, assuming—as we must allow Mill to assume—that we can calculate the effect of conduct upon happiness at large. Again, upon the assumption that 'moral' is equivalent to 'felicific,' we get a general rule entitled to override any individual tastes or fancies, such as Mill supposes to be meant by the 'Moral Sense.' The rule is derived from the interests of all, and gives an ultimate 'objective criterion.' J. S. Mill, describing his father's system, observes that the teaching of such a man was not likely to err on 'the side of laxity or indulgence.'[594] It certainly did not. And, in fact, his criterion, however obtained, had in his eyes the certainty of a scientific law. This or that is right as surely as this or that food is wholesome. My taste has nothing to do with it. And, moreover, the criterion certainly gives a moral ground. If I know that any conduct will produce more happiness than misery that is a moral reason for adopting it. A 'moral sense' which should be radically inconsistent with that criterion, which should order me to inflict suffering as suffering, or without some ulterior reason, would be certainly at fault. Mackintosh indeed would have agreed to this, though, if Mill was right, at the expense of consistency.

Mill, however, deduces from his criterion doctrines which involve a remarkable paradox. The mode in which he is led to them is characteristic of the whole method. Mill, like Bentham, puts morality upon the same plane with law. Conduct is influenced either by the 'community in its conjunct capacity'—that is, by law; or by 'individuals in their individual capacity'—that is, by morality.[595] The sanction of one, we may infer, is force; of the other, approval and disapproval. With this we must take another Benthamite doctrine, of which I have already spoken.[596] 'Mr. Bentham demonstrated,' says Mill, 'that the morality of an act does not depend upon the motive,' and, further, that it 'is altogether dependent on the intention.'[597] Upon this he constantly insists. Mackintosh's view that virtue depends upon motive will be 'scorned by every man who has any knowledge of the philosophy of the human mind.... The virtue does not depend upon the motive. There is no bad motive. Every motive is the desire of good; to the agent himself or to some one else.'[598] He gives an analysis of action to put the point beyond doubt. Action supposes a 'motive,' a 'volition,' and an 'external act' or muscular contraction. So far there is nothing moral. But then an act has consequences, good or bad, to human beings, which constitute its utility. To make it moral, the agent must anticipate 'beneficial consequences,' and must have no reason to anticipate a balance of evil consequences. Intention means the calculation of consequences, and without that calculation there can be no morality.[599] Hence the morality is equivalent to a 'conviction of the general utility' of the action.[600] 'All this,' he concludes, 'is settled by universal consent. It is vain, therefore, to think of disputing it.' One may, however, ask what it means. I have already observed that the view of the non-moral character of motive was a natural corollary from the purely legal point of view. I must now consider the results of applying it unreservedly in the inappropriate sphere of ethics.

In the first place, the denial of any moral quality in motive seems to be inconsistent with Mill's own principles. The Utilitarian, according to him, holds that the moral law is essentially the statement that certain conduct produces general happiness. If, then, we ask, Who is a good man? we first reply that he is a man whose conduct produces happiness. Another conclusion is obviously necessary, and is implied in Mill's statement that the 'intention' is essential to morality. The man, that is, must foresee that his conduct will produce happiness. The 'calculation' is precisely what makes an action moral as well as accidentally useful. In other words, the man is good to whom the knowledge that an act will produce happiness is the same thing as a command to perform the act. The 'intention' could not affect conduct without the corresponding motive, and Mill can at times recognise the obvious consequence. The 'physical law' (meaning the law enforced by physical coercion), he says incidentally, has 'extrinsic' sanctions;[601] the moral law is different, because it sanctions good actions for their goodness. 'Moral approval' must therefore include approval of character. A man, to be moral, must be one who does useful things simply because they are useful. He must then, it would seem, be at least benevolent. The same thing is implied by the doctrine of 'intention' or 'calculation.' An action may be useful or the reverse without being moral when the consequences are unknown to the agent. To make it moral he must know the consequences—for otherwise he is merely acting at random; and the foreseen consequences constitute the 'intention.' To this Mill adds that he must have taken into account the consequences which 'might have been foreseen.'[602] Otherwise we should have to excuse a man because he had neglected to calculate, whereas to calculate is the very essence of virtue. A man who fired a gun down a crowded street would not be excusable because he had not thought of the result. He 'ought' to have thought of it. The question of moral approval of any given action turns upon these questions. Did a man foresee evil consequences and disregard them? He is then cruel. Did he neglect to consider them? He is then culpably careless, though not actually malignant. Were the consequences altogether beyond the powers of reasonable calculation? Then he may be blameless. The whole moral question, therefore, depends upon the character indicated; that is, upon the motives which induce a man to calculate consequences and which determine his conduct when the calculation is made.

The truth is, I think, and it is characteristic of Mill's modes of analysis, that he is making an impossible abstraction. He is separating parts of a single process and treating them as independent. If actions are bad because they have bad consequences, motives are bad because they are causes of bad actions. You cannot suppress the effect without suppressing the cause, and therefore the cause of the cause. Mill relies chiefly upon one argument. The same conduct will produce the same consequences whatever the motives. That is undeniable. It is the same to me whether I am burnt because the persecutor loves my soul or because he hates me as a rebel to his authority. But when is conduct 'the same'? If we classify acts as the legislator has to classify them by 'external' or 'objective' relations, we put together the man who is honest solely from fear of the gallows and the man who is honest from hatred of stealing. So long as both act alike, the 'consequences' to their neighbours are alike. Neither is legally punishable. But if acts are classified by their motives, one is a rogue and the other virtuous; and it is only then that the question of morality properly arises. In that case, it is idle to separate the question of motive and consequences, because the character determines the motive and therefore the action. Nobody should have seen this more clearly than Mill as a good 'determinist.' Conduct and character are related as the convex and concave of the curve; conduct is simply the manifestation of character, and to separate them is absurd.

Why did he not see this? For reasons, I think, which illustrate his whole method. From a scientific point of view, the ethical problem raises the wide questions, What are the moral sentiments? and, What functions do they discharge in regard to the society or to its individual members? We might hold that morality is justified by 'utility' in the sense that the moral rules and the character which they indicate are essential to the welfare of the race or its individual constituents. But to Mill this proposition is interpreted as identical with the proposition that conduct must be estimated by its 'consequences.' We are to consider not the action itself, but its effects; and the effects are clearly independent of the motive when once the action has been done. We may therefore get a calculus of 'utility': general rules stating what actions will be useful considered abstractedly from their motives. The method, again, might be plausible if we could further assume that all men were the same and differed only in external circumstances. That is the point of view to which Mill, like Bentham, is always more or less consciously inclining. The moral and the positive law are equally enforced by 'sanctions'; by something not dependent upon the man himself, and which he is inclined to suppose will operate equally upon all men. Such language could be justifiable only of an average and uniform 'man,' a kind of constant unit, whose varying behaviour must always be explained by difference in circumstance. We have sufficiently seen the results elsewhere, and in this ethical doctrine they are especially manifest.

Mackintosh recognised the fact that morality is essentially a function of character. Mill cannot fully admit that, because he virtually assumes all character to be the same. Regarding morality as something co-ordinate with law, he does not perceive that the very possibility of law implies the moral instincts, which correspond to the constitution of character, and belong to a sphere underlying, not on the same plane with, the legislative sphere. They are the source of all order; not themselves the product of the order. It is impossible to deduce them, therefore, from the organisation which presupposes them. Now, in one direction, Mill's theory leads, as his son remarked, not to laxity but to excessive strictness. The 'criterion' is laid down absolutely. The 'moral sense' is rejected because it means an autocratic faculty, entitled to override the criterion by its own authority. To appeal to 'motives' is to allow the individual to make his own feeling the ultimate test of right and wrong. If we follow Mill in this we are not really assuming the moral neutrality of motive or the indifference, but an impossible profession of character. Men are not governed by abstract principles but by their passions and affections. The emotions, as Mackintosh rightly said, cannot be resolved into the mere logic. Utility may give the true criterion of morality, but it does not follow that the perception of utility is implied in moral conduct. The motives are good which in fact produce useful conduct, though the agent does not contemplate the abstract principle. It is impossible that men should be moved simply by a desire for the 'greatest happiness of the greatest number.' What does and always must guide men is their personal relation to the little circle which they actually influence. The good man is the man so constituted that he will spontaneously fulfil his duties. The moral law, that is, will be also the law of his character and conduct. The mother is good because she loves her child, not because she sees that care of her child is dictated by the general maxim of utility. The 'utility' of character means the fitness of the agent to be an efficient member of the social structure to which he belongs. In particular cases this may lead to such problems as that of Fletcher of Saltoun. His sense of honour and his general benevolence, though both useful, might come into collision; and the most difficult of all questions of casuistry arise from such conflicts between private and public affections. Mill is justified in holding that a sense of honour cannot give an ultimate and autocratic decision. Under some pretext or other, we shall have to ask the Utilitarian question whether on the whole it may not be causing more misery than the virtuous action is worth. But that only means that the character must be so balanced as to give due weight to each motive; not that we can abstract from character altogether, as though human beings could be mere colourless and uniform atoms, embodying abstract formulæ.