Chro-glo, Catholics believe that the path is defined by 3 sources: the Bible, Church doctrine and sacred tradition.
Personally, I find it a little confusing that people rely so completely on the Bible and discount anything after it as merely from "men". I do not believe that the Holy Spirit inspired men to write the Bible and then...just stopped inspiring them. I believe that it is an active and vital presence in our lives and inspires men all the time, so that the Church is alive and growing.
ALL of Catholic doctrine has, in its roots, a Biblical basis. Every section of the Catholic catechism includes, first and foremost, the Biblical basis for the teaching and then includes what it means to us today and how we apply it.
So I absolutely believe that I am living my life the way the writers of the Bible intended. I could care LESS how others live their lives and whether or not they share my beliefs.
I included this tidbit only because I feel that it is relevant to my thread. It certainly adds an element to the SSM that wouldn't otherwise be there.