“…and he too was a pioneer investigator and indefatigable assembler of data in the nineteenth-century style. It is only now that we can see his achievements in scholarship as equalling those of his contemporaries in the natural sciences. He more than any other classicist is responsible for having collected into one place the mythical and religious material of the ancient world, providing the ground for the scientific study of myth and symbol.”
–W.H. Roscher, Pan and the Nightmare: Ephialtes–A Pathological-Mythological Treatise on the Nightmare in Classical Antiquity, & An Essay on Pan by James Hillman, 1972. Pp. iii.