World & Life View IV:  Dynamic Worldview Survey, Oct. 18-20, Glenn Gentry, professor of philosophy at Columbia International University, models what he challenges his students to do: think logically and act consistently. While alumni admit they were intimidated by him at first, they learned to enjoy his prodding and challenging. Dr. Gentry was in Botswana, Africa for five years, developing church leaders. He and his wife have four children.