I'm a huge fan of Russian literature and encourage you to keep seeking out other classical works. Anna Karenina is one of my favorite books of all time, not to mention one of the most complicated morally speaking. I think what draws me to Russian literature the most is the fact that things are spelled out or obvious. You are given all the pieces of the puzzle, every possible scrap of related information, and then left to put the pieces together on your own and draw your own conclusions. I love that.