Faivre noted that there are "obvious similarities" between earlier theosophy and modern Theosophy as both play an important part in Western esotericism and both claim to deal with wisdom from a gnostic perspective. But he says there are also differences, since they do not actually rely on the same reference works; and their style is different. The referential corpus of earlier theosophy "belongs essentially to the Judeo-Christian type", while that of modern Theosophy "reveals a more universal aspect". Although there are many differences between Christian theosophy and the Theosophical movement begun by Helena Blavatsky, the differences "are not important enough to cause an insurmountable barrier". Theosophists like Blavatsky and W.Q. Judge wrote about Jakob Böhme's philosophy. Böhme was also an important influence on the ideas of Franz Hartmann, the founder in 1886 of the German branch of the Theosophical Society. Hartmann described the writings of Böhme as “the most valuable and useful treasure in spiritual literature.”