While, then, the notion of the “good” implies a relation of the appetite or natural tendency of a being towards its end, the notion of “perfection,” or “perfecting,” conveys to our minds actual reality simply, or the actualizing of reality. The term “perfection” is commonly used as synonymous with actual reality. In so far forth as a reality is actual we say it “has perfection”. But we do not call it “perfect” simply, unless it has all the actuality we conceive to be due to its nature: so long as it lacks any of this it is only perfect secundum quid, i.e. in proportion to the actuality it does possess. Hence we define “the perfect” as that which is actually lacking in nothing that is due to its nature. The perfect is therefore not simply the good, but the complete or finished good; and it is even logically distinct from the latter, inasmuch as the actuality connoted by the former has added to it the relation to appetite connoted by the latter. Similarly “goodness” is logically distinct from “perfection” by adding the like relation to the latter. Although a thing has goodness in so far as it has perfection, and vice versa, still its perfection is its actuality simply, while its goodness is this actuality considered as the term of its natural appetite or tendency.

47. Grades of Perfection. Reality as Standard of Value.—We may distinguish between stages of perfection in the changing reality of the same being, or grades of perfection in comparing with one another different classes or orders of being.

In one and the same being we may distinguish between what is called its first or essential perfection, which means its essence or nature considered as capable of realizing its purpose in existence by tending effectively towards its end; what is called its intermediate or accidental perfection, which consists in all the powers, faculties and functions whereby this tendency is gradually actualized; and what is called its final or integral perfection, [pg 173] which consists in its full actualization by complete attainment of its end.

Again, comparing with one another the individual beings that make up our experience, we classify them, we arrange them in a hierarchical order of relative “perfection,” of inferiority or superiority, according to the different grades of reality or perfection which we think we apprehend in them. Thus, we look on living things as a higher, nobler, more perfect order of beings than non-living things, on animal life as a higher form of being than plant life, on intelligence as higher than instinct, on will as superior to sense appetite, on mind or spirit as nobler than matter, and so on. Now all such comparisons involve the apprehension of some standard of value. An estimation of relative values, or relative grades of perfection in things, is unintelligible except in reference to some such standard; it involves of necessity the intuition of such a standard. We feel sure that some at least of our appreciations are unquestionably correct: that man, for instance, is superior to the brute beast, and the latter superior to the plant; that the lowest manifestation of life—in the amœba, or whatever monocellular, microscopic germ may be the lowest—is higher on the scale of being than the highest expression of the mechanical, chemical and physical forces of the inorganic universe. And if we ask ourselves what is our standard of comparison, what is our test or measure, and why are we sure of our application of it in such cases, our only answer is that our standard of comparison is reality itself, actual being, perfection; that we rely implicitly on our intuition of such actual reality as manifested to us in varying grades or degrees within our experience; that without claiming to be infallible in our judgments of comparison, in our classifications of things, in our appreciations of their relative perfection, we may justly assume reality itself to be as such intelligible, and the human mind to be capable of obtaining some true and certain insight into the nature of reality.

48. The Good, the Real, and the Actual.—Having compared “perfection” with “goodness” and with “being,” let us next compare the two latter notions with each other. We shall see presently that every actual being has its ontological goodness, that these are in reality identical. But there is a logical distinction between them. In the first place the term “being” is applied par excellence to substances rather than to [pg 174] accidents. But we do not commonly speak of an individual substance, a person or thing, as good in reference to essential or substantial perfection.[178] When we describe a man, or a machine, as “good,” we mean that the man possesses those accidental perfections, those qualities and endowments, which are suitable to his nature as a man; that the machine possesses those properties which adapt it to its end. In the second place the notion of being is absolute; that of the good is relative, for it implies the notion not of reality simply but of reality as desirable, agreeable, suitable, as perfecting the nature of a subject, as being the end, or conducive to the end, towards which this nature tends. And since what thus perfects must be something not potential but actual, it follows that, unlike real truth, real goodness is identical not with potential, but only with actual reality. It is not an attribute of the abstract, possible essence, but only of the concrete, actually existing essence.[179]

From the fact that the notion of the good is relative it follows that the same thing can be simultaneously good and bad in different relations: “What is one man's meat is another man's poison”.

49. Kinds of Goodness; Divisions of the Good.—(a) The goodness of a being may be considered in relation to this being itself, or to other beings. What is good for a being itself, what makes it intrinsically and formally good, bonum sibi, is whatever perfects it, and in the fullest sense the realization of its end. Hence we speak of a virtuous, upright man, whose conduct is in keeping with his nature and conducive to the realization of his end, as a good man. But a being may also be good to others, bonum alteri, by an extrinsic, active, effective goodness, inasmuch as by its action it may help other beings [pg 175] in the realization of their ends. In this sense, a beneficent man, who wishes the well-being of his fellow-men and helps them to realize this well-being, is called a good man. This kind of goodness is what is often nowadays styled philanthropy; in Christian ethics it is known as charity.

(b) We have described the good as the term or object of natural tendency or appetite. In the domain of beings not endowed with the power of conscious apprehension, determinism rules this natural tendency; this latter is always oriented towards the real good: it never acts amiss: it is always directed by the Divine Wisdom which has given to things their natures. But in the domain of conscious living agents this natural tendency is consequent on apprehension: it takes the form of instinctive animal appetite or of rational volition. And since this apprehension of the good may be erroneous, since what is not really good but evil may be apprehended as good, the appetite or will, which follows this apprehension—nil volitum nisi praecognitum—may be borne towards evil sub ratione boni. Hence the obvious distinction between real good and apparent good—bonum verum and bonum apparens.

(c) In reference to any individual subject—a man, for instance—it is manifest that other beings can be good for him in so far as any of them can be his end or a means to the attainment of his end. They are called in reference to him objective goods, and their goodness objective goodness. But it is equally clear that they are good for him only because he can perfect his own nature by somehow identifying or uniting himself with them, possessing, using, or enjoying them. This possession of the objective good constitutes what has been already referred to as formal or subjective goodness.[180]

(d) We have likewise already referred to the fact that in beings endowed with consciousness and appetite proper, whether sentient or rational, the function of possessing or attaining to what is objectively good, to what suits and perfects the nature of the subject, has for its natural concomitant a feeling of pleasure, satisfaction, well-being, delight, enjoyment. And we have observed that this pleasurable feeling may then become a stimulus to fresh desire, may indeed be desired for its own sake. Now this subjective, pleasure-giving possession of an objective [pg 176] good has been itself called by scholastics bonum delectabile—delectable or delight-giving good. The objective good itself considered as an end, and the perfecting of the subject by its attainment, have been called bonum honestum—good which is really and absolutely such in itself. While if the good in question is really such only when considered as a means to the attainment of an end, of something that is good in itself, the former is called bonum utile—useful good.[181]