https://www.unboundthinker.com/collections/the-search-for-meaning 2026-08-30T04:58:25.598Z weekly 0.80 https://www.unboundthinker.com/collections/ideas-that-shaped-the-world 2026-08-30T05:08:54.805Z weekly 0.80 https://www.unboundthinker.com/collections/the-human-condition 2026-08-30T05:08:56.707Z weekly 0.80 https://www.unboundthinker.com/collections/foundations-of-western-thought 2026-08-30T05:08:57.700Z weekly 0.80