The Brothers Karamazov

Absolutely magnificent. Dostoivisly has a way of making you not only people you know in his novels (which in itself is quite an acomplisment) but also yourself (which at times can be rather unpleasant).

Is there a God? Does man need a God to be good? What does it mean to be a good man, what's the meaning of good?

The book stays with you long after you have finished it.