a Catholic theological movement, primarily in France, that emphasized original sin, human depravity, the necessity of divine grace, and predestination.
Jansenism was opposed by many in the Catholic hierarchy, especially the Jesuits.
Jansen emphasized a particular reading of Augustine's idea of efficacious grace which stressed that only a certain portion of humanity were predestined to be saved. [...]
Jansen also insisted on justification by faith, although he did not contest the necessity of revering saints, of confession, and of frequent Communion.
Jansenism's supporters suffered a decisive defeat when [...] Pope Innocent X in 1653 [issued a decree condemning the cornerstones of their doctrine].
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the Church Fathers, on their similar beliefs, on their common masters, he had departed through the byways to wander in the gloomy glade of Pascal, where he tarried long to recover his breath before continuing on his way and going even farther in the regions of human thought than the Jansenist, whom he derided.
Joris-Karl Huysmans. À Rebours
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I raced back to the house, whipped on by the magic words which had now taken the place, in my mind, of “Jansenist pallor” and “Solar myth”;—” Ladies will not be admitted to the stalls in hats. The doors will be closed at two o’clock.”