It is indeed my opinion now that evil is never “radical,” that it is only extreme, and that it possess neither depth nor any demonic dimension. It can overgrow and lay waste the whole world precisely because it spreads like fungus on the surface. It is “thought-defying,” as I said, because thought tries to reach some depth, to go to the roots, and the moment it concerns itself with evil, it is frustrated because there is nothing. That is its “banality.” Only the good has depth and can be radical.
Hannah ArendtFactual truth is always related to other people: it concerns events and circumstances in which many are involved; it is established by witnesses and depends upon testimony; it exists only to the extent that it is spoken about, even if it occurs in the domain of privacy. It is political by nature.
Hannah Arendt