Section I. On Right And On The Virtue Of Justice Itself

In this first section we shall treat 1. of right itself, which is the proper object of the virtue of justice, and which it is of much importance to understand rightly; for several false notions of right also harm Catholic Moral Theology and are not only errors in juridical science. 2. The character of the virtue of justice in general must be explained. 3. But since man, from frailty or malice, often wounds the obligations imposed from justice, it is then necessary to treat both of the wounding and of the reparation of justice. 4. Finally, because a great part of the obligations of justice arises from contracts entered into, lastly it is necessary to treat of contracts. Thus the whole treatise concerning the virtue of justice itself is contained in the four following questions:

On right itself.
On the virtue of justice considered in itself.
On the wounding of justice and on the reparation of wounded justice.
On contracts.

Nature of Justice and Right

Within this section

Question I. On Right Itselfnn. 1–69
Question II. On The Virtue Of Justice Considered In Itselfnn. 70–73
- Chapter I. On The Notion Of The Virtue Of Justicen. 70
- Chapter II. On The Parts Of Justicenn. 71–73
Question III. On The Violation Of Justice And The Reparation Of Violated Justicenn. 74–247
- Chapter I. On Injustice In Generalnn. 74–76
- Chapter II. On The Unjust Taking Away Of Another's Thingnn. 77–90
  - Article I. On The Nature And Gravity Of Theft In Generalnn. 78–81
  - Article II. On Certain Thefts In Particularnn. 82–85
    § 1. On Petty Thefts In General
    § 2. On Domestic Petty Theftsn. 83
    § 3. On Theft In Public Things, Or On Peculatenn. 84–85
  - Article III. On Causes Excusing The Taking Away Of Another's Thingnn. 86–90
    § 1. On Extreme Necessity As An Excusing Causenn. 86–87
    § 2. On Occult Compensationnn. 88–90
- Chapter III. On Unjust Damagingnn. 91–201
  - Article I. On Unjust Damaging In Generalnn. 91–99
  - Article II. On Cooperative Damagingnn. 100–110
    § 1. On Positive Cooperationnn. 101–108
    1. Command, Mandaten. 101
    2. On The One Counselingnn. 102–103
    3. On The One Consentingnn. 104–105
    4. On The Flatterern. 106
    5. On The One Providing Recoursen. 107
    6. On The Participantn. 108
    § 2. On Negative Cooperationnn. 109–110
  - Article III. On Unjust Damaging By Deeds In The Goods Of The Human Bodynn. 111–152
    § 1. On Injury Against One's Own Bodynn. 112–117
    § 2. On Injury Against The Body Of The Neighbornn. 118–146
    1. On The Killing Of An Evildoer Or On Bloody Punishmentnn. 118–119
    2. On The Killing Of An Unjust Aggressor Or On Bloody Defensenn. 120–123
    3. On Duelingnn. 124–128
    4. On Warnn. 129–130
    5. On The Killing Of The Innocent In Generalnn. 131–132
    6. On Craniotomynn. 133–136
    7. On The Procurement Of Abortionnn. 137–146
    § 3. On Injury From Stuprum, Fornication, Adulterynn. 147–152
    a) On The Reparation Of Damage Arisen From Any Carnal Intercoursenn. 147–150
    b) On The Reparation Of Damage Arisen From Adulterous Intercoursenn. 151–152
  - Article IV. On Unjust Damaging By Wordsnn. 153–201
    I. On Injuries By Words In Judgmentnn. 153–164
    § 1. On The Obligations And Sins Of The Judgenn. 153–158
    § 2. On The Obligations And Sins Of The Accuser And The Plaintiffn. 159
    § 3. On The Obligations And Sins Of Witnessesnn. 160–161
    § 4. On The Obligations And Sins Of The Advocaten. 162
    § 5. On The Obligations And Sins Of The Accused Or Defendant In Criminal Judgmentnn. 163–164
    II. On Injuries By Words Outside Judgmentsnn. 165–201
    § 1. On Truthfulnessn. 165
    § 2. On Lyingnn. 166–170
    § 3. On Mental Restriction And Amphibologynn. 171–174
    § 4. On Violation Of Secretnn. 175–181
    § 5. On Injury To Honornn. 182–186
    § 6. On Injury To Reputationnn. 187–198
    § 7. On Rash Judgmentnn. 199–201
- Chapter IV. On Restitution Or The Reparation Of An Injured Rightnn. 202–247
  - Article I. On The Obligation Of Restitution In Generalnn. 202–206
  - Article II. On The Roots Of Restitution To Be Madenn. 207–227
    § 1. On The First Root Of Restitution, Or On The Possession Of Another's Thingnn. 208–222
    1. On The Possessor In Good Faithnn. 209–215
    2. On The Possessor In Bad Faithnn. 216–220
    3. On The Possessor In Doubtful Faithnn. 221–222
    § 2. On The Other Root Of Restitution, Or On Unjust Damagingnn. 223–227
  - Article III. On The Manner And Circumstances Of Restitutionnn. 228–240
    § 1. To Whom Restitution Is To Be Madenn. 228–236
    § 2. At What Time Restitution Is To Be Maden. 237
    § 3. In What Place Restitution Is To Be Madenn. 238–239
    § 4. In What Manner Restitution Is To Be Maden. 240
  - Article IV. On Causes Excusing From Restitutionnn. 241–247
    § 1. On Exempting Causesnn. 241–242
    § 2. On Causes Excusing for a Timenn. 243–247
Question IV. On Contractsnn. 248–322
- Chapter I. On Contracts in Generalnn. 249–266
  - Article I. On the Notion and Division of Contractsnn. 249–251
  - Article II. On the Requisites for a Contractnn. 252–259
    § 1. On Suitable Matternn. 252–253
    § 2. On Persons Capable of Contractingn. 254
    § 3. On Legitimate Consentnn. 255–258
    § 4. On the External Form of Contractsn. 259
  - Article III. On the Effect or Obligation of Contractsnn. 260–266
- Chapter II. On Contracts in Particularnn. 267–322
  - Article I. On Gratuitous Contractsnn. 267–290
    § 1. On Gratuitous Promisenn. 267–269
    § 2. On Donationnn. 270–282
    1. On Donation in Generaln. 271
    2. On Donation Inter Vivos and in Prospect of Deathn. 272
    3. On Donation by Testamentnn. 273–279
    4. On Presumed Donation, or Intestate Successionnn. 280–282
    § 3. On Loan for Use, Precarium, Deposit, Sequestration, Mandate, and Management of Affairsn. 283
    § 4. On Loan for Consumption and Usurynn. 284–290
  - Article II. On Onerous Commutative Contractsnn. 291–312
    § 1. On Purchase and Sale in Generalnn. 291–301
    1. On Merchandise and the Obligation of the Sellernn. 292–294
    2. On the Price and the Obligation of the Buyernn. 295–301
    § 2. On Certain Kinds of Purchase and Salenn. 302–304
    § 3. On Letting and Hiringnn. 305–312
  - Article III. On Aleatory Contractsnn. 313–322
    § 1. On Insurancen. 314
    § 2. On Wageringn. 315
    § 3. On Gamesnn. 316–319
    § 4. On Lotteriesn. 320
    § 5. On Stock-Exchange Speculationsnn. 321–322