A Topic of Moral Theology

Synderesis

The habit of the first principles of the moral law — good is to be done and evil avoided — which cannot be lost, and on which every judgement of conscience rests.

Also asked about as…

first principles of morality · synteresis · the spark of conscience (ed.)

In the index as Synderesis · Connivance of the legislator · Conscience · Act · Dictamen · Ethics · Human liberty · Idealism · Intellect · Judgment · Knowledge · Moral Sense · Moral conscience · Moral empiricism · Moral intuitionism · Prudence · State · Transcendental objectivism

In the manuals

Manual of Moral Theology (Manuale Theologiae Moralis)

Vol. I, Bk. I, Tr. II, Diss. II, Pt. I, Sect. III, Ch. II, Art. I, § II, Division, and Directive Force of Conscience Properly So Called, n. 217 — I. Notion. Conscience, moral and antecedent, is a dictate of the practical intellect by which someone judges that a particular action is commanded, prohibited, or free for him (St. Alphonsus, I, 2; cf. St. Thomas, I, q. … Read in context →

Commentaries on the Nature of Moral Theology, on Conscience and Probabilism, on the Fourth Precept, and on the Sixth and Ninth Precepts of the Decalogue (Commentarii)

Bucceroni, Commentaries (1910), Second Commentary: On Cons…, I. On the Nature of Conscience, n. 4 — 4. "And according to this mode it is clear how synderesis, natural law, and conscience differ: because natural law names the universal principles of law themselves; synderesis names the habit of them, or the power with t… Read in context →

Institutions of Moral Theology (Institutiones Theologiae Moralis)

Vol. I, On Conscience, I. On the Nature of Conscience, n. 96 — What is the intrinsic nature of moral conscience? - Law regulates human actions in order to their moral honorableness or shamefulness by means of conscience. For in order that it regulate them, it must be applied to the … Read in context →

Synopsis of Moral and Pastoral Theology

Vol. II, Fundamental Moral Theology…, On Conscience, n. 351 — 351. Moral conscience is therefore distinguished: (a) from synderesis, which is usually defined as the habit of the first moral principles, or a certain innate promptitude of reason for easily knowing the first moral pri… Read in context →

Manuale Theologiae Moralis

Vol. I, Pt. I, Tract IV. On Conscience, Ch. I, Article I. On The Notion Of Conscience, n. 302 — 302. Scholion. On the difference between conscience, synteresis, moral science, prudence, and natural law. In order that the definition of moral conscience may appear still more clearly, it is helpful to compare it with … Read in context →

Summa Theologiae Moralis

Vol. I, General Moral Theology, Treatise: On Human Acts in…, Second Part: On Human Acts…, Section A: On the Morality…, Q. II, Article V: On the Apprehensive Faculty of Morality, nn. 135, 136 & 137 (46 passages — hover a number to read it)

Vol. I, General Moral Theology, Treatise: On Conscience in…, First Question: On Moral Conscience According to Itself in Psychological Being, nn. ¶1, 199, 200, 201, 202, 203 & 204 (34 passages — hover a number to read it)

Moral Philosophy: Ethics, Deontology and Natural Law

Pt. II, Ch. VIII, Section I. Of the Origin of Primary Moral Judgments, n. 5 — 5. There is another element of mind, often confounded under one name with conscience, but distinct from it, as a habit from an act, and as principles from their application. This element the schoolmen called synderesis. … Read in context →

Pt. II, Ch. VIII, Section II. Of the invariability of Primary Moral Judgments, n. 3 — 3. It was furthermore observed above (l.c.), that the natural law was so called as being found expressed more or less perfectly in the minds of all men, and therefore being a proper element of human nature. It remains to… Read in context →

Treated under the broader heading Conscience — Noldin, Summa of Moral Theology · Slater, Manual of Moral Theology · McHugh–Callan, Moral Theology · Bucceroni, Moral Enchiridion · Bucceroni, Moral Enchiridion (4th ed., 1905) · Bucceroni, Cases of Conscience · Gury-Ballerini, Compendium of Moral Theology (8th ed., 1884) · Koch–Preuss · Marc, Institutiones Morales · Konings, Theologia Moralis · Sabetti-Barrett, Compendium of Moral Theology · Billuart, Summa Summae · Slater, Cases I · Coppens, Moral Philosophy and 1 more — these works do not divide the matter as finely as we do here, so their treatment stands one heading up (ed.)