As a handful of other people have said here, the Bible. It changed my life (although who knows what I would have become if I hadn't read it). Eventually, I decided that if it made such a difference in my life, I should be part of making it available to others. So I studied linguistics, and became a member of Wycliffe Bible Translators/ Summer Institute of Linguistics, who translate the Bible into minority languages (usually languages which were previously unwritten). That got me into computational linguistics. While I'm not a WBT/SIL member any more, I am still a Christian, and I do still work in computational linguistics, which I'm pretty sure I would not otherwise have gotten into. And it has been worth it all.