G.K. Chesterton, Orthodoxy (1908).
A classic defense of the historic Christian faith against the attacks of modern materialism and scientism. Chesterton's observations during the onset of modernism seem prophetic now that the West is in the throes of post-modernism. This book is not only insightful, it is an absolute delight to read.
Read a great review of this book, celebrating its 100th anniversary:
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