obviously, among the 'Free Ones', the most talent, independence and diligence." To begin with, Engels was enthusiastic about the book and expressed his opinions freely in letters to Marx: Later, Marx and Engels wrote a major criticism of Stirner's work. The number of pages Marx and Engels devote to attacking Stirner in the unexpurgated text of The German Ideology exceeds the total of Stirner's written works. In the book Stirner is derided as Sankt Max (Saint Max) and as Sancho (a reference to Cervantes’ Sancho Panza). As Isaiah Berlin has described it, Stirner "is pursued through five hundred pages of heavy-handed mockery and insult." The book was written in 1845–1846, but it was not published until 1932. Marx's lengthy ferocious polemic against Stirner has since been considered an important turning point in Marx's intellectual development from idealism to materialism. It has been argued that historical materialism was Marx's method of reconciling communism with a Stirnerite rejection of morality.Stedman-Jones, Gareth (2002). "Introduction". In Engels, Friedrich; Marx, Karl. The Communist Manifesto (illustrated, reprinted, revised ed.). London: Penguin Adult. . Possible influence on Friedrich Nietzsche The ideas of Stirner and Friedrich Nietzsche have often been compared and many authors have discussed apparent similarities in their writings, sometimes raising the question of influence. During the early years of Nietzsche's emergence as a well-known figure in Germany, the only thinker discussed in connection with his ideas more often than Stirner was Arthur Schopenhauer. It is certain that Nietzsche read about The Ego and Its Own, which was mentioned in Friedrich Albert Lange's History of Materialism and Karl Robert Eduard von Hartmann's Philosophy of the Unconscious, both of which Nietzsche knew well. However, there is no indication that he actually read it as no mention of Stirner is known to exist anywhere in Nietzsche's publications, papers or correspondence. In 2002, a biographical discovery revealed it is probable that Nietzsche had encountered Stirner's ideas before he read Hartmann and Lange in October 1865, when he met with Eduard Mushacke, an old friend of Stirner's during the 1840s. As soon as Nietzsche's work began to reach a wider audience, the question of whether he owed a debt of influence to Stirner was raised. As early as 1891 when Nietzsche was still alive, though incapacitated by mental illness, Hartmann went so far as to suggest that he had plagiarized Stirner. By the turn of the century, the belief that