On the Significance of Science and Art by graf Leo Tolstoy  || Tolstoy, Leo, graf, 1828-1910; Hapgood, Isabel Florence, 1850-1928 [Translator] || Philosophy; Literature; Art and science; Tolstoy, Leo, graf, 1828-1910 -- Philosophy || Browsing: Art & Photography; Browsing: Literature; Browsing: Philosophy & Ethics || Language : English