| Introduction | |
| Note on the Text | |
| The Summa Theologica, I-II | |
| Of the Essence of Law | 3 |
| Of the Various Kinds of Law | 11 |
| Of the Effects of Law | 24 |
| Of the Eternal Law | 29 |
| Of the Natural Law | 42 |
| Of Human Law | 55 |
| Of the Power of Human Law | 65 |
| Of Change in Laws | 78 |
| Of the Reason for the Judicial Precepts: Article I: Whether the Old Law Enjoined Fitting Precepts Concerning Rulers? | 86 |
| The Summa Theologica, II-II | |
| Of Sedition | 92 |
| Of Right | 96 |
| Of Justice | 105 |
| Of Theft and Robbery | 127 |
| Of Cheating, Which Is Committed in Buying and Selling: Article I: Whether It Is Lawful to Sell a Thing for More Than Its Worth? | 143 |
| Of the Sin of Usury | 147 |
| Of Obedience | 159 |
| On Kingship | |
| What is Meant by the Word "King" | 175 |
| Whether It Is More Expedient for a City or Province to Be Ruled by One Man or Many | 179 |
| That the Dominion of a Tyrant Is the Worst | 181 |
| Why the Royal Dignity Is Rendered Hateful to the Subjects | 185 |
| That It Is a Lesser Evil When a Monarchy Turns into Tyranny Than When an Aristocracy Becomes Corrupt | 186 |
| How Provision Might be Made That the King May Not Fall into Tyranny | 188 |
| What Advantages Which Are Rendered to Kings Are Lost by the Tyrant | 192 |
| Notes | 197 |
| List of Abbreviated Titles | 207 |
| Glossary | 210 |