Arthur Miller said this quote

Here is all the invisible world, caught, defined, and calculated. In these books the Devil stands stripped of all his brute disguises. Here are all your familiar spirits-your incubi and succubi; your witches that go by land, by air, and by sea; your wizards of the night and of the day. Have no fear now-we shall find him out and I mean to crush him utterly if he has shown his face!