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Summa Theologiae · I-II

First Part of the Second Part (Prima Secundae)

Thomas Aquinas, Summa Theologiae. 114 questions, 619 articles.

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Text: Summa Theologiae, Project Gutenberg #17897, First Part of the Second Part (Prima Secundae), translated by the Fathers of the English Dominican Province. The First Part of the Second Part of the Summa in the English Dominican translation (first printed 1911 to 1925; second and revised edition from 1920). A sample check on 2026-11-09 against pre-1931 printings at the Internet Archive (first printings of 1915 and 1916 and the second and revised edition of the 1920s) found that the article text matches, with no 1947 introduction, synopsis, or index. The phrase “From the Complete American Edition” in Gutenberg's catalog title is a provenance note only. Question and article numbers were added by the transcriber. Rights: Public domain (US)

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Prologue

Since, as Damascene states (De Fide Orth. ii, 12), man is said to be made in God's image, in so far as the image implies "an intelligent being endowed with free-will and self-movement": now that we have treated of the exemplar, i.e. God, and of those things which came forth from the power of God in accordance with His will; it remains for us to treat of His image, i.e. man, inasmuch as he too is the principle of his actions, as having free-will and control of his actions.

Questions

Treatise on the Last End

Of Man's Last End (8 articles)
Of Those Things in Which Man's Happiness Consists (8 articles)
What Is Happiness (8 articles)
Of Those Things That Are Required for Happiness (8 articles)
Of the Attainment of Happiness (8 articles)

Treatise on Human Acts: Acts Peculiar to Man

Of the Voluntary and the Involuntary (8 articles)
Of the Circumstances of Human Acts (4 articles)
Of the Will, in Regard to What It Wills (3 articles)
Of That Which Moves the Will (6 articles)
Of the Manner in Which the Will Is Moved (4 articles)
Of Enjoyment, Which Is an Act of the Will (4 articles)
Of Intention (5 articles)
Of Choice, Which Is an Act of the Will with Regard to the Means (6 articles)
Of Counsel, Which Precedes Choice (6 articles)
Of Consent, Which Is an Act of the Will in Regard to the Means (4 articles)
Of Use, Which Is an Act of the Will in Regard to the Means (4 articles)
Of the Acts Commanded by the Will (9 articles)
Of the Good and Evil of Human Acts, in General (11 articles)
Of the Goodness and Malice of the Interior Act of the Will (10 articles)
Of Goodness and Malice in External Human Actions (6 articles)
Of the Consequences of Human Actions by Reason of Their Goodness (4 articles)

Treatise on the Passions

Of the Subject of the Soul's Passions (3 articles)
How the Passions Differ from One Another (4 articles)
Of Good and Evil in the Passions of the Soul (4 articles)
Of the Order of the Passions to One Another (4 articles)
Of the Passions of the Soul in Particular: and First, of Love (4 articles)
Of the Cause of Love (4 articles)
Of the Effects of Love (6 articles)
Of Hatred (6 articles)
Of Concupiscence (4 articles)
Of Delight Considered in Itself (8 articles)
Of the Cause of Pleasure (8 articles)
Of the Effects of Pleasure (4 articles)
Of the Goodness and Malice of Pleasures (4 articles)
Of Pain or Sorrow, in Itself (8 articles)
Of the Causes of Sorrow or Pain (4 articles)
Of the Effects of Pain or Sorrow (4 articles)
Of the Remedies of Sorrow or Pain (5 articles)
Of the Goodness and Malice of Sorrow or Pain (4 articles)
Of the Irascible Passions, and First, of Hope and Despair (8 articles)
Of Fear, in Itself (4 articles)
Of the Object of Fear (6 articles)
Of the Cause of Fear (2 articles)
Of the Effects of Fear (4 articles)
Of Daring (4 articles)
Of Anger, in Itself (8 articles)
Of the Cause That Provokes Anger, and of the Remedies of Anger (4 articles)
Of the Effects of Anger (4 articles)

Treatise on Habits

Of Habits in General, As to Their Substance (4 articles)
Of the Subject of Habits (6 articles)
Of the Cause of Habits, As to Their Formation (4 articles)
Of the Increase of Habits (3 articles)
How Habits Are Corrupted or Diminished (3 articles)
Of the Distinction of Habits (4 articles)
Of the Virtues, As to Their Essence (4 articles)
Of the Subject of Virtue (6 articles)
Of the Intellectual Virtues (6 articles)
Of the Difference Between Moral and Intellectual Virtues (5 articles)
Of the Moral Virtues in Relation to the Passions (5 articles)
How the Moral Virtues Differ from One Another (5 articles)
Of the Cardinal Virtues (5 articles)
Of the Theological Virtues (4 articles)
Of the Cause of Virtues (4 articles)
Of the Mean of Virtue (4 articles)
Of the Connection of Virtues (5 articles)
Of Equality Among the Virtues (6 articles)
Of the Duration of Virtues After This Life (6 articles)
Of the Gifts (8 articles)
Of the Beatitudes (4 articles)
Of the Fruits of the Holy Ghost (4 articles)
Of Vice and Sin Considered in Themselves (6 articles)
Of the Distinction of Sins (9 articles)
Of the Comparison of One Sin with Another (10 articles)
Of the Subject of Sin (10 articles)
Of the Causes of Sin, in General (4 articles)
Of the Causes of Sin, in Particular (4 articles)
Of the Cause of Sin, on the Part of the Sensitive Appetite (8 articles)
Of That Cause of Sin Which Is Malice (4 articles)
Of the External Causes of Sin (4 articles)
Of the Cause of Sin, As Regards the Devil (4 articles)
Of the Cause of Sin, on the Part of Man (5 articles)
Of Original Sin, As to Its Essence (4 articles)
Of the Subject of Original Sin (4 articles)
Of the Cause of Sin, in Respect of One Sin Being the Cause (4 articles)
Of the Effects of Sin, and, First, of the Corruption of the (6 articles)
Of the Stain of Sin (2 articles)
Of the Debt of Punishment (8 articles)
Of Venial and Mortal Sin (6 articles)
Of Venial Sin in Itself (6 articles)

Treatise on Law

Of the Essence of Law (4 articles)
Of the Various Kinds of Law (6 articles)
Of the Effects of Law (2 articles)
Of the Eternal Law (6 articles)
Of the Natural Law (6 articles)
Of Human Law (4 articles)
Of the Power of Human Law (6 articles)
Of Change in Laws (4 articles)
Of the Old Law (6 articles)
Of the Precepts of the Old Law (6 articles)
Of the Moral Precepts of the Old Law (12 articles)
Of the Ceremonial Precepts in Themselves (4 articles)
Of the Causes of the Ceremonial Precepts (6 articles)
Of the Duration of the Ceremonial Precepts (4 articles)
Of the Judicial Precepts (4 articles)
Of the Reason for the Judicial Precepts (4 articles)
Of the Law of the Gospel, Called the New Law, Considered in Itself (4 articles)
Of the New Law As Compared with the Old (4 articles)
Of Those Things That Are Contained in the New Law (4 articles)

Treatise on Grace

Of the Necessity of Grace (10 articles)
Of the Grace of God as Regards Its Essence (4 articles)
Of the Division of Grace (5 articles)
Of the Cause of Grace (5 articles)
Of the Effects of Grace (10 articles)
Of Merit (10 articles)

Also online, linked only: the same translation at New Advent and the Latin text at Corpus Thomisticum. Neither is copied here.

Source: Thomas Aquinas. Summa Theologica, First Part of the Second Part. Project Gutenberg #17897. Project Gutenberg record. Public domain in the USA. Outside the U.S., check local copyright rules. Project Gutenberg notices retained. The full Project Gutenberg license is kept in the hosted text.