Whoever has read history knows that in all nations, civilized as well as uncivilized, from the remotest antiquity, the priests have claimed learning as the privilege of their caste, bestowed upon them by special favor of the Ruling Spirit of the universe. For this reason they have zealously kept from the gaze of other men their intellectual treasures, and surrounded them with the veil of mystery. They have carefully hid all their discoveries, scientific or artistic, under the cover of symbols, reserving their esoteric or secret meaning for the initiated; giving to the people only such exoteric or public explanation of them as best suited their purpose. They put into practice the principle, that "It was necessary to keep the discoveries of the philosophers in the works of art or nature from those unworthy of knowing them," enunciated by the erudite and celebrated English monk Roger Bacon, one of the most learned men of his time, who was confined during many years in a prison cell by his ignorant brethren on account of his great erudition. This same principle is yet closely adhered to by the Brahmins, the Buddhist priests of Thibet, the Adepts of India, and I might add the Jesuits among the Christians, although they are very inferior in knowledge to the others; the secrecy they have observed for centuries, and do still observe, being their best guarantee of power and honor. Judging from the numerous devices and emblems that formed the ornamentation of the temples and palaces in the ancient ruined cities of Yucatan, the priests of Mayax seem to have been as addicted to symbology as their congeners in India, Egypt, Chaldea and other countries. Among these devices and symbols, several belong clearly to their sacred mysteries. The study of the relics of ancient Maya civilization has made manifest to my mind the source of many of the primitive traditions of mankind, which have reached us through the sacred books of the Hindoos, the Chaldeans, the Egyptians, and the Jews. These, having received them from both the Chaldees and the Egyptians, have consigned the relation in the Pentateuch, a book long attributed to Moses, but now believed by Matthew Henry and other commentators, who pride themselves upon their orthodoxy, to have been written in times subsequent to the foundation of the Hebrew monarchy. Might it not be possible that, in Mayax also, could be found the origin of the mystification of the numbers 3, 5, and 7, regarded as mystic by all civilized nations of antiquity all over the earth?