Letter 16 Themes: Church shopping and criticism; being teachable; humility and love on secondary doctrinal issues. Screwtape-Letters_-16Download Letter 17 Themes: Different facets of gluttony; greed related to sensuality (sins of the senses); selfishness; fasting. Screwtape-Letters_-17Download Letter 18 Themes: Nature and the role of love; physical intimacy and oneness in marriage; feelings of being “in love”....