Foolishness for Christ 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 and Lizaveta in "Crime and
Demons (Dostoevsky novel) in the ideas of Petr Tkachev. Tkachev argued that the only biologically possible 'equality' for human beings was "an organic, physiological equality conditioned by the same education and common living conditions" and he saw this as the supreme goal of all historical and social progress. Contemporary events in Russia and the terroristic actions of the Paris Commune had convinced Dostoevsky that the world was entering an apocalyptic age. Kjertsaa claims that Dostoevsky did not regard "Revelation" as "merely a consolatory epistle to first century Christians during the persecution they suffered", but as a "prophecy being fulfilled in his own time".