William Blake: The Great Red Dragon and the Woman Clothed in Sun
<<There’s no doubt that we all have both sides (the shadow and bright side) in us, the fact is we must try not to ignore the unwilling one and give our best to know it. the great heroes are they who have no fear to acknowledge them both >>
Jung: On the demonic dynamism of the Shadow in mass movements…
It is a frightening thought that man also has a shadow side to him, consisting not just of little weaknesses and foibles, but of a positively demonic dynamism.
The individual seldom knows anything of this; to him, as an individual, it is incredible that he should ever in any circumstances go beyond himself.
But let these harmless creatures form a mass, and there emerges a raging monster, and each individual is only one tiny cell in the monster’s body so that for better or worse he must accompany it on its bloody rampages and even assist it to the utmost.
Having a dark suspicion of these grim possibilities, the man turns a blind eye to the shadow-side of human nature.
Blindly he strives against the salutary dogma of original sin, which is yet so prodigiously true.
Yes, he even hesitates to admit the conflict of which he is so painfully aware.
Two Essays on Analytical Psychology