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Summa Theologiae · I-II, q. 55

Question 55. Of the Virtues, As to Their Essence

Thomas Aquinas, Summa Theologiae, First Part of the Second Part. 4 articles.

Read in the reading room → This question at New Advent

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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We come now to the consideration of habits specifically. And since habits, as we have said (Q. 54, A. 3), are divided into good and bad, we must speak in the first place of good habits, which are virtues, and of other matters connected with them, namely the Gifts, Beatitudes and Fruits; in the second place, of bad habits, namely of vices and sins. Now five things must be considered about virtues: (1) the essence of virtue; (2) its subject; (3) the division of virtue; (4) the cause of virtue; (5) certain properties of virtue.

Under the first head, there are four points of inquiry:

(1) Whether human virtue is a habit?

(2) Whether it is an operative habit?

(3) Whether it is a good habit?

(4) Of the definition of virtue.

Articles

  1. Whether Human Virtue Is a Habit?
  2. Whether Human Virtue Is an Operative Habit?
  3. Whether Human Virtue Is a Good Habit?
  4. Whether Virtue Is Suitably Defined?

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.