Remembered for authoring several theology books, including Ascent to Being from 1961 and Rendezvous with God from 1991.
He obtained his Ph.D. from Fordham University in 1961.
He was a ubiquitous presence in the media, appearing on programs like Good Morning America on ABC and Crossfire on CNN.
He was born in Manhattan to Italian immigrants. He was the ninth child out of 10 children.
He and Richard Dooling both completed their undergraduate studies at St. Louis University.