Hypatia was a Greek mathematician, astronomer and philosopher who lived in Alexandria, Egypt, in the late 4th - early 5th century, when Egypt was a Roman province. The reliable facts about her life are limited, but they arguably suffice for an idea of her type. Hypatia was the head of the Platonist school of Alexandria; her father, Theon, was also a mathematician who edited and commented on Euclid's works. No works by Hypatia herself survive but besides some historical narratives we have the letters her former student Synesius, as bishop of a neighboring province, wrote to her. They include a request for her to build him a hydrometer, the earliest historical mention of that device, and a discussion on astrolabes. From his letters, and the accounts, it is clear that Hypatia was highly respected not just because of her academic standing but as a person of wisdom and integrity. It is also likely that many among the upper classes of Alexandria had been among her studen...
An international resource on Socionics, a theory of personality type.