Porphyry was a vegetarian Greek philosopher

Lived: around AD 233-309
Birth place: Tyre (now Southern Lebanon)

Porphyry of Tyre was a Syrian Neoplatonic philosopher and an important figure in the history of mathematics. He wrote: Life of Pythagoras, a commentary on Euclid's Elements, and Isagogue or Introduction to Aristotle's 'Categories.'

For information see: <a href="http://www.ivu.org/history/greece_rome/porphyry.html" target="_blank">IVU</a>