Gluttony of Delicacy Screwtape demonstrates the value of gluttony: The contemptuous way in which you spoke of gluttony as a means of catching souls, in your last letter, only shows your ignorance. One of the great achievements of the last hundred years has been to deaden the human conscience on that subject, so that by now you will hardly find a sermon preached or a conscience troubled about it in the whole length and breadth of Europe. This has largely been effected by concentrating all our efforts on gluttony of Delicacy, not gluttony of Excess.