Adversus Rufinum
Jerome's polemical work against Rufinus, containing important discussions of Origenism and Pythagorean symbolism.
Commentary on the Pentateuch of Moses
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Canons Bearing a Torch Before the Pentateuch
— Cited (Book III) for the riddles/symbols of Pythagoras
"the riddles of Pythagoras, says St. Jerome (Against Rufinus, book 3)"