From about 400 she was the head of the Platonic School in Alexandria. She taught mathematics, philosophy and astronomy. Hypatia gathered around her a circle of devoted students who formed a community seeking knowledge and understanding of the nature of reality based on Pythagorean-Platonic philosophy.
She demanded of herself and her students effort of mind, will and sacrifice, but at the same time she was a tolerant person with an open view of philosophical problems.
