There can be only one answer to that - the Bible. Twenty years ago, I was convinced the content alone justified the claims of a divine origin, which opinion ha

There can be only one answer to that - the Bible. Twenty years ago, I was convinced the content alone justified the claims of a divine origin, which opinion has only grown stronger in the years since. Even if you don't believe in it, it is worth reading as literature - an extraordinarily epic story, and a lot of stuff to say about humanity and divinity along the way. Everything else, comparatively, seems to me like it was written by children. But that's a useless answer, as the purpose of such a question is to generate recommendations, and that's unlikely to be a new one to anybody. One of the books that's impacted me the most in the last few years is Homer's Illiad. I used to wonder why we read The Odyssey in high school and never talked about The Illiad, but I don't wonder now! I think all the violence in Illiad would warrant more than a PG-13 rating. ;) But it is a great story about men and gods and struggle and war, with a lot to say about what mankind is and what it can be, and a lot of heroes to want to grow up to be someday. The introduction to my copy includes the quote, "It is a good thing that war is so terrible, otherwise we would grow to love it too much." That quote will make no sense to most people; if it resonates with you, this book is your kind of book. I am currently reading through Heidegger's The Question Concerning Technology, as I am looking for wisdom on how to navigate the highly technological time I find myself in. I haven't finished it, but I find the insights profound, and I see the ideas everywhere. I think it may prove to be the best thing I've ever read on the topic of what it means to interact with technology and remain human. Shakespeare is legendary for a reason. I haven't read one of his plays yet that that I didn't deeply enjoy. They never hit right in high school, but as an adult I find them profound. I giggled my way through A Comedy of Errors recently and it still makes me smile. A Christian recommendation - I've very much enjoyed Jeremy Taylor's 1650 Holy Living and Dying. Probably the best book on Christian life I've read, and I've read quite a few - and it's a book that rarely makes people's short lists. It's long and I haven't finished it, but as much as I've read so far continues to impact me. Edit: I almost forgot! I read The Princess and the Goblin several years ago. It is a fairy tale intended for children, and is yet one of the best books I have ever read on the subject of girlhood, and I have spent a lifetime searching for them. If you have (or are, or find yourself in an occasion to love) a girl, I can't recommend it highly enough.