From a Wall Street Journal story by Ken Jennings headlined “Five Best: Books on the Eternal Questions”:

The Brothers Karamazov
By Fyodor Dostoyevsky (1880)

1. Almost every eternal question is addressed somewhere in the 360,000 words of “The Brothers Karamazov,” because it is one of those ambitious 19th-century novels, like “Moby-Dick” or “Middlemarch.” These books somehow pack in absolutely everything—all of human experience, even the things that contradict the other things—between their covers. But at the heart of this book is the question of free will, especially in the famous “Grand Inquisitor” chapter. This parable imagines Christ returning to earth, only to be sentenced to execution by the church, which now takes a dim view of the freedom of conscience he preached.