John Bunyan's Pilgrim's Progress remains a spiritual classic. Yes, the antiquated English usages require a measure of patience for many readers. But trust me, this book is so worth the effort. It can change your worldview. Download it here: http://www.manybooks.net/titles/bunyanjoetext94plgrm11.html#download
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I got one of my "life quotes" from this book:
To go back is certain death; to go forward is indeed attended with the fear of death; but eternal life is beyond, and I must venture.