St. Catherine of Alexandria (282-305) was an intelligent princess from Egypt. As a teenager, she confronted the Roman emperor for persecuting Christians. His best scholars debated with her but she converted them to the faith. After rejecting the emperor's marriage proposal, she was tortured with a spiked wheel. She converted the emperor's wife and many soldiers before her execution. St. Catherine is the patron saint of philosophers. Her feast day is on 25 November.