Iamblichus averred that Hermes was the author of twenty thousand books; Manetho increased the number to more than thirty-six thousand (see James Gardner) figures which make it evident that a solitary individual, even though he be overshadowed by divine prerogative, could scarcely have accomplished such a monumental labor.
Among the arts and sciences which it is affirmed Hermes revealed to mankind were medicine, chemistry, law, arc, astrology, music, rhetoric, Magic, philosophy, geography, mathematics (especially geometry), anatomy, and oratory....