Systematic Index

The state has the office of educating in a subsidiary way 2208, by safeguarding by laws the right of the family and children 2209 f., and by observing the right of the Church 2209 f., by promoting education and scholarship 2210, by commanding and taking care of instruction in civil and national laws 2210 or civic education 2211.

"Sexual" education is reprobated 2214, 2251, likewise education that is merely natural 2213, and coeducation 2215.

The Fifth Precept of the Decalogue

[XI q]

Man is bound to preserve his own life 1938c, C1240.

Hence he should not rashly throw it away 1939.

A public magistrate has no direct power over the members (of the body) of those subject to him 2246, private persons have no other than that which pertains to the natural ends of the bodily members 2246; hence he cannot destroy or mutilate them except if otherwise he cannot provide for the good of the whole body 2246; nor is it permitted the state to deprive citizens of the generative power 2245 f.

To wound or to kill a man for a private reason (per se) is not lawful 1939, 2354; but for a public reason it is lawful to kill or wound a man 1939 if it is done as punishment for a crime 425, 2245 f.

The killing of an unjust aggressor is lawful 1939, not however of a calumniator 1117, 1180, or a false witness or an unjust judge 1118, or of an adulterous spouse 1119, or of one running away after striking a blow 1180, or on stealing a gold piece 1181, or impeding the hope of possessing 1182, of an inheritance, or legacy, or office, or an allowance 1183.

The direct killing of the innocent is (intrinsically) evil 1890, 2243, C2354. Tyrannicide is illicit 690.

Abortion is illicit (even before the animation of the fetus 1184 f.) 1890a, 2242 ff., C2350 sec. 1; likewise craniotomy 1889 f., even of an ectopic fetus 1890b f.

A duel is illicit 1102, 1491 ff., 1939 f., C2351, and likewise with the assistance of a doctor or a confessor 1862, C2351 sec. 1.

The Sixth Precept of the Decalogue

[XI r]

1. Outside and within matrimony: Temptations of the flesh are to be resisted (even in the midst of prayer) 1261 ff.

The kiss of a woman is not always a mortal sin 477.

Pollution (prohibited by the law of nature 717g, 1199), sodomy, and bestiality are sins of the lowest different species 1124. Masturbation to care for health is illicit 2201.

Intercourse (illicit) is a grave sin specifically different from an imperfect act 1125.

A concubine is to be put out, even if it seems difficult 1141.

Artificial insemination is to be avoided 3303.

2. Outside of matrimony: voluptuousness and a carnal act are sins 477, and this is against the natural law 717g, 2231, not admitting of lightness of matter 1140, 5005.

Fornication is a mortal sin 43, 453, and that by the law of nature 1198.

3. Within marriage: the function of marriage is not by its own nature a sin 241, 537, 2230; moreover it is due the one who seeks it 2231, 2248; but exercised for voluptuousness alone it does not lack venial sin 1159.

Intercourse with a married woman, even with the consent of the husband is adultery 1200, 2231, C2357 sec. 2.

Onanism is intrinsically gravely sinful 2239 ff.

Because of adultery the separation of spouses is licit 702, C1129.

The union of blood relatives is prohibited by divine law 362.

The Seventh Precept of the Decalogue

[XI s]

The right of property is natural 1851, 1938abc, 2256, necessary for the com-