| Mortal from its genus: “Therefore theft, as being opposed to charity, is a mortal sin.” | St. Thomas II-II, q. 66, a. 6In nearly the same words: Prümmer II, n. 79; Merkelbach II, n. 404; Wouters n. 1028; Marc n. 904; Sabetti-Barrett n. 403; Vermeersch n. 660; McHugh-Callan n. 1894 |
| Society would be undone: “and if men were to rob one another habitually, human society would be undone” | St. Thomas II-II, q. 66, a. 6In nearly the same words: Merkelbach II, n. 404; Marc n. 904 |
| Its train of evils: “It gives rise to hasty and rash judgments, engenders hatred, originates enmities, and sometimes subjects the innocent to cruel condemnation.” | Roman Catechism The Seventh CommandmentIn nearly the same words: Merkelbach II, n. 404 |
| Venial in small things: “Reason accounts as nothing that which is little: so that a man does not consider himself injured in very little matters” | St. Thomas II-II, q. 66, a. 6, ad 3In nearly the same words: Merkelbach II, n. 404; Marc n. 904; Prümmer II, n. 79 |
| Mortal even in little, from the intention: “Yet if his intention is to rob and injure his neighbor, there may be a mortal sin even in these very little things” | St. Thomas II-II, q. 66, a. 6, ad 3In nearly the same words: Wouters n. 1029; Marc n. 908; Bontempi What quantity is required for mort, n. 18 |
| A little thing gravely harmful: “Theft of absolutely light matter, which brings upon another grave sadness or annoyance or notable damage, is by accident a grave sin against charity toward one's neighbor, or also against justice.” | Merkelbach II, n. 406In nearly the same words: Marc n. 908; Wouters n. 1028; Bontempi What quantity is required for mort, n. 19 |
| Robbery graver than theft: “Therefore robbery is a more grievous sin than theft.” | St. Thomas II-II, q. 66, a. 9In nearly the same words: McHugh-Callan n. 1892; Roman Catechism The Seventh Commandment; Bontempi What theft is, n. 4 |
| Princes who extort, graver than robbers: “and by so much do they sin more grievously than robbers, as their actions are fraught with greater and more universal danger to public justice whose wardens they are” | St. Thomas II-II, q. 66, a. 8, ad 3 |
| Grave matter, relative and absolute: “Grave matter of theft (and damaging) must be determined both relatively and absolutely.” | Noldin n. 415In nearly the same words: Merkelbach II, n. 405; Prümmer II, n. 80; Sabetti-Barrett n. 404; Wouters n. 1028; Marc n. 905; McHugh-Callan n. 1899; Vermeersch n. 660 |
| The older opinion, one measure for all: “an older opinion held that the standard should be an absolute one” | McHugh-Callan n. 1899In nearly the same words: Merkelbach II, n. 405 |
| Relatively grave, a day's support: “This is generally judged to be that which suffices someone for one day for the support of himself or also of his own” | Merkelbach II, n. 405In nearly the same words: Marc n. 906; Spirago Sins against the Seventh Commandment; Vermeersch n. 660 |
| By times and places, morally not mathematically: “the standard for measuring gravity of matter is not an invariable one, but will differ according to circumstances of times and places” | McHugh-Callan n. 1897In nearly the same words: Prümmer II, n. 81; Merkelbach II, n. 405; Bontempi What quantity is required for mort, n. 17 |
| Prümmer, the sums measure the obligation of restitution: “it seems that here there is question not so much of the gravity of the sin of theft - which depends much on the lax or scrupulous conscience of the agent - as rather of the grave obligation of restitution arising from the taking away of another's thing” | Prümmer II, n. 80 |
| Thefts at home, a greater quantity: “With respect to thefts of sons, ordinarily a quantity twice greater is required for constituting grave sin than in thefts of strangers” | Noldin n. 417In nearly the same words: Merkelbach II, n. 406; Marc n. 907; McHugh-Callan n. 1903; Sabetti-Barrett n. 404; Vermeersch n. 660 |
| Relics, weighed by dignity: “Therefore it would be mortal to steal the smallest particle of the Holy Cross” | Noldin n. 416In nearly the same words: McHugh-Callan n. 1901 |
| Wild things of public woods, lighter: “Civil laws prohibiting dry branches, grass, fungi, clusters, and other wild fruits from being gathered in public forests are commonly only penal laws.” | Prümmer II, n. 84In nearly the same words: Marc n. 910; McHugh-Callan n. 1906; Noldin n. 418 |
| Wouters, with intent to restore at once: “It is not mortal, speaking per se, to steal any sum whatever with the intention of restoring immediately” | Wouters n. 1028 |
| Little thefts after grave matter is reached: “Light thefts following upon grave matter already completed do not constitute a new mortal sin, unless they again reach a new grave quantity” | Merkelbach II, n. 407In nearly the same words: Marc n. 909; Sabetti-Barrett n. 405; Vermeersch n. 660 |
| Grave necessity lessens, does not excuse: “although grave necessity does not excuse from theft, nevertheless it lessens its gravity” | Merkelbach II, n. 411In nearly the same words: Prümmer II, n. 86; Marc n. 913 |
| Bontempi, urgent necessity excuses: “I assert therefore that in urgent necessity it is lawful to take what is necessary.” | Bontempi Whether in extreme, or urgent, nec, n. 11In nearly the same words: Vermeersch n. 660 |