The cause of science in the nineteenth century had no more devoted champion. As its advocate, he belongs with Darwin, Huxley, Mill, Spencer, Bain, Wundt, Taine, and histories of philosophy, Lewes is usually categorized as one of the Comtist positivists, but this is a misleading wrote an explication of Comte's theories in 1853 ( Comte's Philosophy of the Sciences ); he never lost his admiration for certain Comtean he was too original a thinker to remain a mere disciple, and he lost Comte's friendship because he criticized his later mystical dogmatist for any cause, Lewes never tired of attacking absolutist belief in the efficacy of the scientific-empirical position grew more confirmed as he grew older. At the early age of twenty, he wrote: "We arrive then at the conclusion that we can never know but relative truth, our only medium of knowledge being the senses, and this medium, with regard to all without us , being forever a false one; but being true to us, we may put confidence in it relatively." In one of his last volumes, Foundations of a Creed , he . .