Summa Theologiae · I-II, q. 50
Question 50. Of the Subject of Habits
Thomas Aquinas, Summa Theologiae, First Part of the Second Part. 6 articles.
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 consider next the subject of habits: and under this head there are six points of inquiry:
(1) Whether there is a habit in the body?
(2) Whether the soul is a subject of habit, in respect of its essence or in respect of its power?
(3) Whether in the powers of the sensitive part there can be a habit?
(4) Whether there is a habit in the intellect?
(5) Whether there is a habit in the will?
(6) Whether there is a habit in separate substances?
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