This paper explains that Fyodor Dostoevsky's most influential works are "Crime and Punishment" (1866) and "The Brothers Karamazov"
(1879-80), which, like most of his literary work attempted to justify the necessity of faith and of God as conditions of true freedom. The author points out that all works of Dostoevsky can be divided in two undying questions about the
existence of God and about
immortality of soul. The paper states that Dostoevsky was very interested in the theme of sin as related in his novel "Crime and Punishment": Sins can be different: when you offend a person, it is a sin; when you murder, it also is a sin.