84. Considered even in the concrete and in individual cases, all acts that are not human, but indeliberate or involuntary (see 23 sqq.), are morally indifferent—or, more correctly, unmoral, as being outside the genus of moral acts on account of the absence in them of will, which is the prerequisite of morality. Thus, absent-minded acts are neither good nor bad morally.
85. As to the kind of intention required to make an indifferent act morally good, or which should be had when the act is objectively good, we conclude: (a) The good intended must not be solely a sensible good (i.e., the pleasure that the act gives), but also and chiefly a rational good (i.e., its conformity to moral standards), since man, unlike the animals, was made, not for sensible, but for rational good. Hence, to eat deliberately with no other end than that of gratifying the palate, is to eat without a moral purpose worthy of a human being, and is a bad act.
(b) The moral good of virtue which is intended in acts must not be regarded as the supreme good, but should be referred to God, since He alone is the Last End (see 20). Hence, to eat and drink with moderation solely because that is reasonable and suitable to human nature, if one excludes the Last End, is to slight the necessary purpose and is morally bad. (c) The intention of moral good or virtue in human acts need not be actual or reflex. Thus, a person who has a previously formed intention of living reasonably, or who at the time of eating intends to eat moderately for the sake of health, sufficiently intends a moral end. Likewise, it is not necessary that the reference of an act to the Last End be made actually or explicitly. Hence, every person in the friendship of God, in all his deliberate acts that are not evil, has a sufficient reference of them to God contained in the fact that he has chosen God for his Last End, or in that here and now he intends some motive that becomes a rational being.
86. An actual and explicit intention of the moral goodness of an act, and an actual and explicit reference of the act to the Last End, though not necessary, increase the moral value of what is done.
87. Axiom of Pseudo-Dionysius: “That act is good whose causes are complete; that act is evil in which a single cause is lacking.”
(a) This axiom can be understood as referring to perfect good, and the meaning then is that an act is not perfectly good in the moral sense unless all its elements—its object, purpose and circumstances—are good; just as an oration is not called perfect, unless all its elements—the speaker, the matter, the style and the delivery—are what they should be. Hence, a single defect is enough to make an act fall short of perfection.
(b) The axiom can be understood of essential goodness, and the meaning then is that an act is not essentially good unless all the causes that contribute to essential goodness—the object of the act and any circumstances that may through the intention of the agent take on the character of object—are good; just as a man is not said to be healthy, unless his heart, lungs, and all the other chief parts of the body are sound. Hence, an act is substantially bad, if either its own end (the object of the act) or the special purpose had in mind by the agent (the end of the agent) is bad, as explained above in 79-81.
88. The axiom of Dionysius does not mean: (a) that an act cannot be essentially or substantially good and at the same time accidentally bad (see 78), for, if even one circumstance not properly attended to could change an act from good into bad, how few good acts would be done even by the most saintly persons! Example: Caius who sacrifices himself for the service of God and his neighbor, now and then feels some slight vanity over his work. His acts remain substantially good. (b) The axiom does not mean that an act cannot be substantially bad and yet have good circumstances that diminish its badness (see 81).
89. Morality of the External Act.—Having considered the morality of the internal act, we shall now turn to the external act (such as giving an alms, stealing, and the like), and inquire whether it has a morality of its own distinct from that of the internal act (see 56 Sqq.).
90. If the external act be considered precisely as it is the object, or effect, of the internal act of the will, it does not add any essential morality to the internal act, since, having no freedom of its own, it is moral only in so far as it proceeds from the will. In this sense, then, he who gives an alms to the poor, and he who would give it if he could, are equal in goodness of will; and he who wishes to defraud, and he who actually defrauds, are equal in malice of will.