Unsung for the most part, Peter Stanlis co-led the Burkean revival of the twentieth century (along with Russell Kirk). A devout Roman Catholic, he wrote frequently on the application of theological concepts to politics and culture.
This is a vital piece exploring the difference between two major schools of Christian Humanism: the Augustinian and the Thomist.
Stormfields 
I suppose Scotism is supposed to be a species of Augustinianism? I never heard before that Augustine defended the immaculate conception
Thanks, Lee. I don’t know enough about Scotism to comment. But, Stanlis is painting these pretty broadly.