If we refuse assent to reality: if we rebel against the nature of things and choose to think that what we at the moment want is the centre of the universe to which everything else ought to accommodate itself, the first effect on us will be that the whole universe will seem to be filled with an inexplicable hostility. We shall begin to feel that everything has a down on us, and that, being so badly treated, we have a just grievance against things in general. That is the knowledge of good and evil and the fall into illusion. If we cherish and fondle that grievance, and would rather wallow in it and vent our irritation in spite and malice than humbly admit we are in the wrong and try to amend our behaviour so as to get back to reality, that is, while it lasts, the deliberate choice, and a foretaste of the experience of Hell.
—Dorothy L. Sayers, Introductory Papers on Dante
h/t: Tom Simon