No its not. Scripture references Scripture, but it NEVER says Scripture Alone. As a matter of fact Scripture never defines Scripture or provides a Table of Contents. The Bible only exists because the Church wanted to establish a Lectionary to identify which writings it felt were legitimate to be read during the Liturgy of the Word in the Mass.
"No other source has proven infallibility.
When we see through the eyes of faith earthly proof is not needed. If you have faith why do you need proof?
Well, tell ya what. You go right ahead and rely on mans tradition while I will follow the example set by Christ and voiced by Paul when he commended the Bereans for “searching the scriptures daily to see if what they said was true”. You have the Pharisees as examples, I have Christ. Your “tradition” includes pagan rituals, symbols, and holy days. My scripture has only the inspired by God words that promise enough information to assure me of salvation. No Catholic is assured of salvation. I am.
Sigh...
When the Holy Spirit speaks; the Magic guys aren't needed.
Then the Catholic church, and Catholics in general, need to stop hypocritically using Scripture to support their doctrines and just man up enough to admit that the only reason they have for people to believe them is because they said so.