Reply to Objection 1: Dionysius discusses the Divine Names (Div. Nom. i, iii) as implying some causal relation in God; for we name God, as he says, from creatures, as a cause from its effects. But goodness, since it has the aspect of desirable, implies the idea of a final cause, the causality of which is first among causes, since an agent does not act except for some end; and by an agent matter is moved to its form. Hence the end is called the cause of causes. Thus goodness, as a cause, is prior to being, as is the end to the form. Therefore among the names signifying the divine causality, goodness precedes being. Again, according to the Platonists, who, through not distinguishing primary matter from privation, said that matter was non-being, goodness is more extensively participated than being; for primary matter participates in goodness as tending to it, for all seek their like; but it does not participate in being, since it is presumed to be non-being. Therefore Dionysius says that "goodness extends to non-existence" (Div. Nom. v).
Reply to Objection 2: The same solution is applied to this objection. Or it may be said that goodness extends to existing and non-existing things, not so far as it can be predicated of them, but so far as it can cause them---if, indeed, by non-existence we understand not simply those things which do not exist, but those which are potential, and not actual. For goodness has the aspect of the end, in which not only actual things find their completion, but also towards which tend even those things which are not actual, but merely potential. Now being implies the habitude of a formal cause only, either inherent or exemplar; and its causality does not extend save to those things which are actual.
Reply to Objection 3: Non-being is desirable, not of itself, but only relatively---i.e. inasmuch as the removal of an evil, which can only be removed by non-being, is desirable. Now the removal of an evil cannot be desirable, except so far as this evil deprives a thing of some being. Therefore being is desirable of itself; and non-being only relatively, inasmuch as one seeks some mode of being of which one cannot bear to be deprived; thus even non-being can be spoken of as relatively good.
Reply to Objection 4: Life, wisdom, and the like, are desirable only so far as they are actual. Hence, in each one of them some sort of being is desired. And thus nothing can be desired except being; and consequently nothing is good except being.
Whether every being is good?
Objection 1: It seems that not every being is good. For goodness is something superadded to being, as is clear from A[1]. But whatever is added to being limits it; as substance, quantity, quality, etc. Therefore goodness limits being. Therefore not every being is good.
Objection 2: Further, no evil is good: "Woe to you that call evil good and good evil" ( Is. 5:20 ). But some things are called evil. Therefore not every being is good.
Objection 3: Further, goodness implies desirability. Now primary matter does not imply desirability, but rather that which desires. Therefore primary matter does not contain the formality of goodness. Therefore not every being is good.
Objection 4: Further, the Philosopher notes (Metaph. iii) that "in mathematics goodness does not exist." But mathematics are entities; otherwise there would be no science of mathematics. Therefore not every being is good.
On the contrary, Every being that is not God is God's creature. Now every creature of God is good ( 1 Tim. 4:4 ): and God is the greatest good. Therefore every being is good.
I answer that, Every being, as being, is good. For all being, as being, has actuality and is in some way perfect; since every act implies some sort of perfection; and perfection implies desirability and goodness, as is clear from A[1]. Hence it follows that every being as such is good.
Reply to Objection 1: Substance, quantity, quality, and everything included in them, limit being by applying it to some essence or nature. Now in this sense, goodness does not add anything to being beyond the aspect of desirability and perfection, which is also proper to being, whatever kind of nature it may be. Hence goodness does not limit being.
Reply to Objection 2: No being can be spoken of as evil, formally as being, but only so far as it lacks being. Thus a man is said to be evil, because he lacks some virtue; and an eye is said to be evil, because it lacks the power to see well.
Reply to Objection 3: As primary matter has only potential being, so it is only potentially good. Although, according to the Platonists, primary matter may be said to be a non-being on account of the privation attaching to it, nevertheless, it does participate to a certain extent in goodness, viz. by its relation to, or aptitude for, goodness. Consequently, to be desirable is not its property, but to desire.
Reply to Objection 4: Mathematical entities do not subsist as realities; because they would be in some sort good if they subsisted; but they have only logical existence, inasmuch as they are abstracted from motion and matter; thus they cannot have the aspect of an end, which itself has the aspect of moving another. Nor is it repugnant that there should be in some logical entity neither goodness nor form of goodness; since the idea of being is prior to the idea of goodness, as was said in the preceding article.
Whether goodness has the aspect of a final cause?
Objection 1: It seems that goodness has not the aspect of a final cause, but rather of the other causes. For, as Dionysius says (Div. Nom. iv), "Goodness is praised as beauty." But beauty has the aspect of a formal cause. Therefore goodness has the aspect of a formal cause.
Objection 2: Further, goodness is self-diffusive; for Dionysius says (Div. Nom. iv) that goodness is that whereby all things subsist, and are. But to be self-giving implies the aspect of an efficient cause. Therefore goodness has the aspect of an efficient cause.
Objection 3: Further, Augustine says (De Doctr. Christ. i, 31) that "we exist because God is good." But we owe our existence to God as the efficient cause. Therefore goodness implies the aspect of an efficient cause.
On the contrary, The Philosopher says (Phys. ii) that "that is to be considered as the end and the good of other things, for the sake of which something is." Therefore goodness has the aspect of a final cause.
I answer that, Since goodness is that which all things desire, and since this has the aspect of an end, it is clear that goodness implies the aspect of an end. Nevertheless, the idea of goodness presupposes the idea of an efficient cause, and also of a formal cause. For we see that what is first in causing, is last in the thing caused. Fire, e.g. heats first of all before it reproduces the form of fire; though the heat in the fire follows from its substantial form. Now in causing, goodness and the end come first, both of which move the agent to act; secondly, the action of the agent moving to the form; thirdly, comes the form. Hence in that which is caused the converse ought to take place, so that there should be first, the form whereby it is a being; secondly, we consider in it its effective power, whereby it is perfect in being, for a thing is perfect when it can reproduce its like, as the Philosopher says (Meteor. iv); thirdly, there follows the formality of goodness which is the basic principle of its perfection.
Reply to Objection 1: Beauty and goodness in a thing are identical fundamentally; for they are based upon the same thing, namely, the form; and consequently goodness is praised as beauty. But they differ logically, for goodness properly relates to the appetite (goodness being what all things desire); and therefore it has the aspect of an end (the appetite being a kind of movement towards a thing). On the other hand, beauty relates to the cognitive faculty; for beautiful things are those which please when seen. Hence beauty consists in due proportion; for the senses delight in things duly proportioned, as in what is after their own kind---because even sense is a sort of reason, just as is every cognitive faculty. Now since knowledge is by assimilation, and similarity relates to form, beauty properly belongs to the nature of a formal cause.
Reply to Objection 2: Goodness is described as self-diffusive in the sense that an end is said to move.
Reply to Objection 3: He who has a will is said to be good, so far as he has a good will; because it is by our will that we employ whatever powers we may have. Hence a man is said to be good, not by his good understanding; but by his good will. Now the will relates to the end as to its proper object. Thus the saying, "we exist because God is good" has reference to the final cause.
Whether the essence of goodness consists in mode, species and order?