1 June - St Justin, Martyr

St Justin lived in the 2nd century in Judaea (present-day Syria). He is best known as an Apologist - he wrote many works defending Christianity against heresies and misunderstandings. He also founded a school of philosophy in Rome, where he taught Christianity as the true philosophy, for free. In 165 AD, he was scourged and beheaded for the faith. He is the patron saint of philosophers.