Dostoevsky, whose work is often considered a philosophical precursor to existentialism, often expressed a similar concern in his novels. In "The Brothers Karamazov", the character Dimitri Karamazov asks his atheist friend Rakitin, ”...without God and immortal life? All things are lawful then, they can do what they like?” Raskolnikov, the anti-hero of Dostoevsky’s novel "Crime and Punishment", puts this philosophy into action when he kills an elderly pawnbroker and her sister, later rationalizing this act to himself with the words, “...it wasn’t a human being I killed, it was a principle!”