Julian believed in almost every form of pagan divination as well as in astrology. To the oracles of Apollo he ascribed the civilizing of the greater part of the world through the foundation of Greek colonies and the revelation of religious and political law.[1430] The historian Ammianus Marcellinus[1431] tells us that Julian was continually inspecting entrails of victims and interpreting dreams and omens, and that he even proposed to re-open a prophetic fountain whose predictions were supposed to have enabled Hadrian to become emperor, after which that emperor blocked it up from fear that someone else might supplant him through its instrumentality. In another passage[1432] he defends Julian from the charge of magic, saying, “Inasmuch as malicious persons have attributed the use of evil arts to learn the future to this ruler who was a learned inquirer into all branches of knowledge, we shall briefly indicate how a wise man is able to acquire this by no means trivial variety of learning. The spirit behind all the elements, seeing that it is incessantly and everywhere active in the prophetic movement of perennial bodies, bestows upon us the gift of divination by the different arts which we employ; and the forces of nature, propitiated by varied rites, as from exhaustless springs provide mankind with prophetic utterances.” [Sidenote: Scientific divination.] Ammianus thus regards the arts of divination as serious sciences based upon natural forces, although of course in the characteristic Neo-Platonic way of thinking he confuses the spiritual and physical and substitutes propitiatory rites for scientific experiments. His phrase, “the prophetic movement of perennial bodies” almost certainly means the stars and shows his belief in astrology. In another passage[1433] he indicates the widespread trust in astrology among the Roman nobles of his time, the later fourth century, by saying that even those “who deny that there are superior powers in the sky,” nevertheless think it imprudent to appear in public or dine or bathe without having first consulted an almanac as to the whereabouts of Mercury or the exact position of the moon in Cancer. The passage is satirical, no doubt, but Ammianus probably objects quite as much to their disbelief in superior powers in the sky as he does to the excess of their superstition. That astrology and divination may be studied scientifically he again indicates in a description of learning at Alexandria. Besides praising the medical training to be had there, and mentioning the study of geometry, music, astronomy, and arithmetic, he says, “In addition to these subjects they cultivate the science which reveals the ways of the fates.”[1434] [Sidenote: Proclus on theurgy.]