Skip to main content

Salas, Juan de


Jesuit theologian; b. Gumiel de Iban, in the province of Burgos, Spain, Dec. 3,1553; d. Salamanca, Sept. 20, 1612. He entered the society in 1569, and taught philosophy at Segovia and theology at Compostela, Barcelona, Salamanca, Valladolid, and Rome. In Rome Salas was employed by C. Acquaviva, general of the society, as censor of books and theological adviser, and he was given a place among those appointed to represent the Jesuits at the congregatio de auxiliis. He was a man of broad learning and an authority of considerable repute, especially in the field of moral theology. During his lifetime Salas published three volumes of commentary on the Prima secundae of the Summa theologiae of St. Thomas Aquinas (Barcelona 1607, 1609; Lyons 1611). After his death his commentary on the portion of the Secunda secundae dealing with contracts was published by D. Muñoz (Lyons 1617). He is also credited by Sommervogel with a De gratia et auxiliis that was not published because of the Holy See's prohibition of further works on the subject. Salas's treatment of contracts is of historical, as well as theological, importance because of its discussion of the business practices of the time and especially of the problem of interest taking.

Bibliography: c. sommervogel et al., Bibliothèque de la Compagnie de Jésus, 11 v. (Brussels-Paris 18901932; v. 12, suppl.1960) 7:448449. h. hurter, Nomenclator literarius theologiae catholicae, 5 v. in 6 (3d ed. Innsbruck 190313) 3:589. r. brouillard, Dictionnaire de théologie catholique, ed. a. vacant et al., 15 v. (Paris 190350; Tables générales 1951) 14.1:1032. Enciclopedia de la Religión Católica, ed. r. d. ferreres et al., 7 v. (Barcelona 195056) 6:948.

[p. k. meagher]

Cite this article
Pick a style below, and copy the text for your bibliography.

  • MLA
  • Chicago
  • APA

"Salas, Juan de." New Catholic Encyclopedia. . 18 Feb. 2019 <>.

"Salas, Juan de." New Catholic Encyclopedia. . (February 18, 2019).

"Salas, Juan de." New Catholic Encyclopedia. . Retrieved February 18, 2019 from

Learn more about citation styles

Citation styles gives you the ability to cite reference entries and articles according to common styles from the Modern Language Association (MLA), The Chicago Manual of Style, and the American Psychological Association (APA).

Within the “Cite this article” tool, pick a style to see how all available information looks when formatted according to that style. Then, copy and paste the text into your bibliography or works cited list.

Because each style has its own formatting nuances that evolve over time and not all information is available for every reference entry or article, cannot guarantee each citation it generates. Therefore, it’s best to use citations as a starting point before checking the style against your school or publication’s requirements and the most-recent information available at these sites:

Modern Language Association

The Chicago Manual of Style

American Psychological Association

  • Most online reference entries and articles do not have page numbers. Therefore, that information is unavailable for most content. However, the date of retrieval is often important. Refer to each style’s convention regarding the best way to format page numbers and retrieval dates.
  • In addition to the MLA, Chicago, and APA styles, your school, university, publication, or institution may have its own requirements for citations. Therefore, be sure to refer to those guidelines when editing your bibliography or works cited list.