> Arthur Schopenhauer - The World as Will and Representation.
Actually just ordered this about a week ago. Read a couple articles about him and got the impression that he shares a lot with early Christianity (and also Buddhism)
> Marcel Proust - In Search of Lost Time. Exceptionally rich and a beautiful study of love. Reading it is like living another life.
Haven't read the Proust but I'd say the same for War and Peace