Pick a unit to go through the quotes from the Writings section by section, just as your study circle does — exactly as the book quotes them. Then practise memorizing them.
Book 9: Gaining an Historical Perspective · Book 10: Building Vibrant Communities · Book 11: Material Means · Book 12: Family and the Community · Book 13: Engaging in Social Action · Book 14: Participating in Public Discourse. These are pre-publication or still in development; see ruhi.org.
Book and unit titles are those published by the Ruhi Institute. Phoenix is not affiliated with the Ruhi Institute and does not reproduce its materials: it only records which words of the Writings each section quotes, and shows those words from the Bahá’í Reference Library. The explanations and exercises are in the books themselves.