Orpheus is certainly associated with a great many deeds: the most famous perhaps being his descent to the underworld to bring back his wife, Eurydice. Orpheus’ deeds are not usually condemned or spoken of negatively. This suggests that some forms of magic were more acceptable. Indeed, the term applied to Orpheus to separate him, presumably, from magicians of ill repute is "theios aner" or ‘divine man’. Magical powers were also attributed to the famous mathematician and philosopher Pythagoras (c. 570 – 495 BCE), as recorded in the days of Aristotle. The traditions concerning Pythagoras are somewhat complicated because the number of Vitae that do survive are often contradictory in their interpretation of the figure of Pythagoras. Some of the magical acts attributed to him include:   Empedocles (c. 490 – c. 430 BCE) too has ascribed to him marvelous powers associated with later magicians: that is, he is able to heal the sick, rejuvenate the old, influence the weather and summon the dead. E.R. Dodds in his 1951 book, "The Greeks and the Irrational", argued that Empedocles was a combination of poet, magus, teacher, and scientist. Dodds argued that since much of the acquired knowledge of individuals like Pythagoras or Empedocles was somewhat mysterious even to those with a rudimentary education, it might be associated with magic or at least with the learning of a Magus. It is important to note that after Empedocles, the scale of magical gifts in exceptional individuals shrinks in the literature, becoming specialized. Individuals might have the gift of healing, or the gift of prophecy, but are not usually credited with a wide range of supernatural powers as are magoi like Orpheus, Pythagoras and Empedocles. Plato reflects such an attitude in his Laws (933a-e) where he takes healers, prophets and sorcerers for granted. He acknowledges that these practitioners existed in Athens (and thus presumably in other Greek cities), and they had to be reckoned with and controlled by laws; but one should not be afraid of them, their powers are real, but they themselves represent a rather low order of humanity. An early Christian analogy is found in the 1st century CE writings of the Apostle Paul. Paul's First Letter to the Corinthians conceptualizes the idea of a limitation of spiritual gifts. The Hellenistic period (roughly the last three centuries BCE) is characterized by an avid interest in magic, though this may simply be because from this period a greater abundance of texts, both literary and some from actual practitioners, in Greek and in Latin remains.