Groups such as the Martinist Order founded by Papus in 1891, followed the theosophical current closely linked to the Judeo-Christian-Islamic tradition and Western esotericism. Theosophers outside of the initiate societies included people such as Vladimir Solovyov (1853–1900), whose views have been described as follows: "although empiricism and rationalism rest on false principles, their respective objective contents, external experience, qua the foundation of natural science, and logical thought, qua the foundation of pure philosophy, are to be synthesized or encompassed along with mystical knowledge in 'integral knowledge,' what Solovyov terms 'theosophy.'"