The yurodivy appears several times in the novels of Dostoevsky. "The Idiot" explores the ramifications of placing a holy fool (the compassionate and insightful epileptic Prince Myshkin) in a secular world dominated by vanity and desire. According to Joseph Frank "though the gentlemanly and well-educated prince bears no external resemblance to these eccentric figures, he does possess their traditional gift of spiritual insight, which operates instinctively, below any level of conscious awareness or doctrinal commitment." In "Demons", the madwoman Marya Lebyadkina displays many of the attributes of the holy fool, as do the characters of Sofya Marmeladova in "Crime and Punishment" and Lizaveta in "The Brothers Karamazov".