Augustinian Theology. It has sometimes been held
that Manicheism exerted some influence on the theol-
ogy of Saint Augustine, who, in his youth, was a
Manichean for nine years. But whatever there is of
dualism in him seems rather to come from Saint Paul
and Saint John the Evangelist, who, without themselves
being Gnostics, may have been the principal inspirers
of Gnosticism. Be that as it may, Saint Augustine kept
alive in occidental theology a rather strong dualistic
trend by his deep separation of Nature from Grace.
We find this sort of dualism again in Luther and in
the Jansenists.