Dialectical Christianity and Christian materialism: The Riddell memorial lectures, fortieth series, delivered at the University of Newcastle upon Tyne on 25, 26, and 27 February 1969,
Robert Charles Zaehner had a gift for languages and became an expert in Oriental languages. As a result, he was chosen as a British counterintelligence agent in Tehran, Persia during World War II and an MI6 agent there after the war. He returned to academia and became Spalding Professor of Eastern Religions and Ethics at the University of Oxford and a Fellow of All Souls College, writing numerous books on religion, both eastern and western.
Information adapted from Wikipedia and the back cover of The Bhagavad-Gita which he translated and authored