High Quality Content by WIKIPEDIA articles! Norman L. Geisler (born 1932) is a Christian apologist and the co-founder of Southern Evangelical Seminary outside Charlotte, North Carolina, where he formerly taught. He holds a Ph.D. in philosophy from Jesuit Loyola University. Geisler is well known for his scholarly contributions to the subjects of Christian apologetics, philosophy, and moderate Calvinism and is the author, coauthor, or editor of over 60 books and hundreds of articles.