The Birth of Purgatory. University of Chicago Press, 1984, p. 52. ISBN 9780226470832. «to say a few words about the two Greek "inventors" of Purgatory, Clement of Alexandria»
Clement of Alexandria. The Stromata (Book VII). Newadvent.org [Consulta: 23 juny 2021]. Chapter 2: "[A]ll men are His; some through knowledge, and others not yet so; and some as friends, some as faithful servants, some as servants merely. This is the Teacher, who trains the Gnostic by mysteries, and the believer by good hopes, and the hard of heart by corrective discipline through sensible operation. ... And how is He Saviour and Lord, if not the Saviour and Lord of all? But He is the Saviour of those who have believed, because of their wishing to know; and the Lord of those who have not believed, till, being enabled to confess him, they obtain the peculiar and appropriate boon which comes by Him. ... [N]ecessary corrections, through the goodness of the great overseeing Judge, both by the attendant angels, and by various acts of anticipative judgment, and by the perfect judgment, compel egregious sinners to repent."
