Thomas Aquinas - Summa Theologica, Part I-II (Pars Prima Secundae)

Obj. 3: Further, "involuntariness is not without sadness," as Damascene says (De Fide Orth. ii, 24). But some things are done out of ignorance, but without sadness: for instance, a man may kill a foe, whom he wishes to kill, thinking at the time that he is killing a stag. Therefore ignorance does not cause involuntariness.

On the contrary, Damascene (De Fide Orth. ii, 24) and the Philosopher (Ethic. iii, 1) say that "what is done through ignorance is involuntary."

I answer that, If ignorance causes involuntariness, it is in so far as it deprives one of knowledge, which is a necessary condition of voluntariness, as was declared above (A. 1). But it is not every ignorance that deprives one of this knowledge. Accordingly, we must take note that ignorance has a threefold relationship to the act of the will: in one way, "concomitantly"; in another, "consequently"; in a third way, "antecedently." "Concomitantly," when there is ignorance of what is done; but, so that even if it were known, it would be done. For then, ignorance does not induce one to wish this to be done, but it just happens that a thing is at the same time done, and not known: thus in the example given (Obj. 3) a man did indeed wish to kill his foe, but killed him in ignorance, thinking to kill a stag. And ignorance of this kind, as the Philosopher states (Ethic. iii, 1), does not cause involuntariness, since it is not the cause of anything that is repugnant to the will: but it causes "non-voluntariness," since that which is unknown cannot be actually willed. Ignorance is "consequent" to the act of the will, in so far as ignorance itself is voluntary: and this happens in two ways, in accordance with the two aforesaid modes of voluntary (A. 3). First, because the act of the will is brought to bear on the ignorance: as when a man wishes not to know, that he may have an excuse for sin, or that he may not be withheld from sin; according to Job 21:14: "We desire not the knowledge of Thy ways." And this is called "affected ignorance." Secondly, ignorance is said to be voluntary, when it regards that which one can and ought to know: for in this sense "not to act" and "not to will" are said to be voluntary, as stated above (A. 3). And ignorance of this kind happens, either when one does not actually consider what one can and ought to consider; this is called "ignorance of evil choice," and arises from some passion or habit: or when one does not take the trouble to acquire the knowledge which one ought to have; in which sense, ignorance of the general principles of law, which one to know, is voluntary, as being due to negligence. Accordingly, if in either of these ways, ignorance is voluntary, it cannot cause involuntariness simply. Nevertheless it causes involuntariness in a certain respect, inasmuch as it precedes the movement of the will towards the act, which movement would not be, if there were knowledge. Ignorance is "antecedent" to the act of the will, when it is not voluntary, and yet is the cause of man's willing what he would not will otherwise. Thus a man may be ignorant of some circumstance of his act, which he was not bound to know, the result being that he does that which he would not do, if he knew of that circumstance; for instance, a man, after taking proper precaution, may not know that someone is coming along the road, so that he shoots an arrow and slays a passer-by. Such ignorance causes involuntariness simply.

From this may be gathered the solution of the objections. For the first objection deals with ignorance of what a man is bound to know. The second, with ignorance of choice, which is voluntary to a certain extent, as stated above. The third, with that ignorance which is concomitant with the act of the will.

We must now consider the circumstances of human acts: under which head there are four points of inquiry:

(1) What is a circumstance?

(2) Whether a theologian should take note of the circumstances of human acts?

(3) How many circumstances are there?

(4) Which are the most important of them? ________________________

FIRST ARTICLE [I-II, Q. 7, Art. 1]

Whether a Circumstance Is an Accident of a Human Act?

Objection 1: It would seem that a circumstance is not an accident of a human act. For Tully says (De Invent. Rhetor. i) that a circumstance is that from "which an orator adds authority and strength to his argument." But oratorical arguments are derived principally from things pertaining to the essence of a thing, such as the definition, the genus, the species, and the like, from which also Tully declares that an orator should draw his arguments. Therefore a circumstance is not an accident of a human act.

Obj. 2: Further, "to be in" is proper to an accident. But that which surrounds ( circumstat ) is rather out than in. Therefore the circumstances are not accidents of human acts.

Obj. 3: Further, an accident has no accident. But human acts themselves are accidents. Therefore the circumstances are not accidents of acts.

On the contrary, The particular conditions of any singular thing are called its individuating accidents. But the Philosopher (Ethic. iii, 1) calls the circumstances particular things [* ta kath' ekasta ], i.e. the particular conditions of each act. Therefore the circumstances are individual accidents of human acts.

I answer that, Since, according to the Philosopher (Peri Herm. i), "words are the signs of what we understand," it must needs be that in naming things we follow the process of intellectual knowledge. Now our intellectual knowledge proceeds from the better known to the less known. Accordingly with us, names of more obvious things are transferred so as to signify things less obvious: and hence it is that, as stated in Metaph. x, 4, "the notion of distance has been transferred from things that are apart locally, to all kinds of opposition": and in like manner words that signify local movement are employed to designate all other movements, because bodies which are circumscribed by place, are best known to us. And hence it is that the word "circumstance" has passed from located things to human acts.

Now in things located, that is said to surround something, which is outside it, but touches it, or is placed near it. Accordingly, whatever conditions are outside the substance of an act, and yet in some way touch the human act, are called circumstances. Now what is outside a thing's substance, while it belongs to that thing, is called its accident. Wherefore the circumstances of human acts should be called their accidents.

Reply Obj. 1: The orator gives strength to his argument, in the first place, from the substance of the act; and secondly, from the circumstances of the act. Thus a man becomes indictable, first, through being guilty of murder; secondly, through having done it fraudulently, or from motives of greed or at a holy time or place, and so forth. And so in the passage quoted, it is said pointedly that the orator "adds strength to his argument," as though this were something secondary.

Reply Obj. 2: A thing is said to be an accident of something in two ways. First, from being in that thing: thus, whiteness is said to be an accident of Socrates. Secondly, because it is together with that thing in the same subject: thus, whiteness is an accident of the art of music, inasmuch as they meet in the same subject, so as to touch one another, as it were. And in this sense circumstances are said to be the accidents of human acts.

Reply Obj. 3: As stated above (ad 2), an accident is said to be the accident of an accident, from the fact that they meet in the same subject. But this happens in two ways. First, in so far as two accidents are both related to the same subject, without any relation to one another; as whiteness and the art of music in Socrates. Secondly, when such accidents are related to one another; as when the subject receives one accident by means of the other; for instance, a body receives color by means of its surface. And thus also is one accident said to be in another; for we speak of color as being in the surface.