8. In looking at the means taken and the circumstances that accompany those means, it is important to have a ready rule for pronouncing what particular belongs to the means and what to the circumstances. Thus Clytemnestra deals her husband Agamemnon a deadly stroke with an axe, partly for revenge, partly that she may take to herself another consort; is the deadliness of the blow part of the means taken or only an accompanying circumstance? It is part of the means taken. The means taken include every particular that is willed and chosen as making for the end in view. The fatal character of the blow does make to that end; if Agamemnon does not die, the revenge will not be complete, and life with Aegisthus will be impossible. On the other hand, the fact that Clytemnestra is the wife of the man whom she murders, is not a point that her will rests upon as furthering her purpose at all; it is an accompanying circumstance. This method of distinguishing means from circumstance is of great value in casuistry.

9. It is clear that not every attendant circumstance affects the morality of the means taken. Thus the blow under which Agamemnon sank was neither more nor less guiltily struck because it was dealt with an axe, because it was under pretence of giving him a bath, or because his feet were entangled in a long robe. These circumstances are all irrelevant. Those only are relevant which attach some special reasonableness or unreasonableness to the thing done Thus the provocation that Clytemnestra had from her husband's introduction of Cassandra into her house made her act of vengeance less unreasonable: on the other hand it was rendered more unreasonable by the circumstance of the dear and holy tie that binds wife to husband. The provocation and the relationship were two relevant circumstances in that case.

10. But it happens sometimes that a circumstance only affects the reasonableness of an action on the supposition of some previous circumstance so affecting it. Thus to carry off a thing in large or small quantities does not affect the reasonableness of the carrying, unless there be already some other circumstance attached that renders the act good or evil; as for instance, if the goods that are being removed are stolen property. Circumstances of this sort are called aggravating—or, as the case may be, extenuating—circumstances. Circumstances that of themselves, and apart from any previous supposition, make the thing done peculiarly reasonable or unreasonable, are called specifying circumstances. They are so called, because they place the action in some species of virtue or vice; whereas aggravating or extenuating circumstances add to, or take off from, the good or evil of the action in that species of virtue or vice to which it already belongs.

11. A variety of specifying circumstances may place one and the same action in many various species of virtue or vice. Thus a religious robbing his parents would sin at once against justice, piety, and religion. A nun preferring death to dishonour practises three virtues, chastity, fortitude, and religion.

12. The means chosen may be of four several characters:—

(a) A thing evil of itself and inexcusable under all conceivable circumstances; for instance, blasphemy, idolatry, lying.

(b) Needing excuse, as the killing of a man, the looking at an indecent object. Such things are not to be done except under certain circumstances and with a grave reason. Thus indecent sights may be met in the discharge of professional duty. In that case indeed they cease to be indecent. They are then only indecent when they are viewed without cause. The absence of a good motive in a case like this commonly implies the presence of a bad one.

(c) Indifferent, as walking or sitting down.

(d) Good of itself, but liable to be vitiated by circumstances, as prayer and almsgiving; the good of such actions may be destroyed wholly or in part by their being done out of a vain motive, or unseasonably, or indiscreetly.

13. It is said, "If thy eye be single, thy whole body shall be lightsome." (St. Matt., vi., 22.) The eye is the intention contemplating the end in view. Whoever has placed a good end before him, and regards it steadily with a well-ordered love, never swerving in his affection from the way that reason would have him love, must needs take towards his end those means, and those only, which are in themselves reasonable and just: as it is written: "Thou shalt follow justly after that which is just." (Deut. xvi., 20.) Thus I am building a church to the glory of God; money runs short: I perceive that by signing a certain contract that must mean grievous oppression of the poor, I shall save considerable expense, whereas, if I refuse, the works will have to be abandoned for want of funds. If I have purely the glory of God before my eyes, I certainly shall not sign that contract: for injustice I know can bear no fruit of Divine glory. But if I am bent upon having the building up in any case, of course I shall sign: but then my love for the end in view is no longer pure and regulated by reason: it is not God but myself that I am seeking in the work. Thus an end entirely just, holy, and pure, purifies and sanctifies the means, not formally, by investing with a character of justice means in themselves unjust, for that is impossible,—the leopard cannot change his spots,—but by way of elimination, removing unjust means as ineligible to my purpose, and leaving me only those means to choose from which are in themselves just.