 Despite such disillusionment, Naturphilosophie would remain a profound influence on Fechner. There are two fundamental ideals of Naturphilosophie which would have an enduring effect on him: first, its ideal of a unified worldview; and, second, its organic concept of nature. However much Fechner rejected the methods of Naturphilosophie, he was still excited by these ideals, which he would never renounce. Already by 1824, then, there is a basic tension in Fechner’s intellectual life: the hankering for speculative Naturphilosophie and the demand for exact science. 