The Five Solas identified the distinctive theological positions held by the reformers and continue to serve as distinguishing characteristics of Reformed Theology. Here is a brief description of each, as well as links to additional information. http://reasonabletheology.org/five-solas
"Salvation and Justification" - FREE printable (PDF). This journal studies the Catholic understanding of Salvation and Justification, as it contrasts with Sola fide ("Faith alone"). From the Coming Home Network (www.chnetwork.org)
Sola fide (Latin: by faith alone), also historically known as the doctrine of justification by faith alone, is a Christian theological doctrine that distinguishes most Protestant denominations from Catholicism, Eastern Christianity, and some in the Restoration Movement.
The Church stands on two feet, Protestantism only on sola fide, therefore faith is so important to it but not to the Catholic. ~Carl Jung, Letters Vol. II, Pages 111-112.