Almost 14 years ago, before I had met him, a good friend of mine wrote an article about Dietrich von Hildebrand. I recently found this article when I was trying to do some research about von Hildebrand. It is a fairly long article but does give some very good insight into the thinking of von Hildebrand. The author is Thomas Howard, who is a Catholic author (many of his books are published by Ignatius Press) and is also the man who, more than any other man on this earth, I credit with leading me into the Catholic Church.
The article can be found here. While you are looking that article up why not click here and see some of Thomas Howard's books. The first two listed – On Being Catholic & Evangelical is Not Enough – are both very good.