Bradley writes that Iago "illustrates in the most perfect combination the two facts concerning evil, which seem to have impressed Shakespeare the most", the first being that "the fact that perfectly sane people exist in whom fellow-feeling of any kind is so weak that an almost absolute egoism becomes possible to them", with the second being "that such evil is compatible, and even appears to ally itself easily, with exceptional powers of will and intellect". The same critic also famously said that "to compare Iago with the Satan of "Paradise Lost" seems almost absurd, so immensely does Shakespeare's man exceed Milton's Fiend in evil".