"Ідіот" (Fool) is a novel written by Fyodor Dostoevsky, first published in 1869. The story follows Prince Myshkin, a kind-hearted and naive man who returns to Russia after spending years in a Swiss sanatorium. His innocence and honesty contrast sharply with the corruption and moral decay of society around him. The novel explores themes of morality, the nature of goodness, and the complexities of human relationships. As Myshkin interacts with various characters, including Nastasya Filippovna and Rogozhin, he becomes embroiled in their struggles, revealing the challenges of maintaining integrity in a flawed world.