Catholic apologetics: Sola Scriptura?

Is the Bible the sole authority and foundation of truth for Christianity?  No, the Church is the "pillar and bulwark of truth" (1 Timothy 3:15) and the final authority (Matthew 18:17).  Furthermore, there are traditions to be observed which are on equal footing with Scripture for not everything the Apostles taught or Jesus said, was written down (1 Corinthians 11:2; 2 Thessalonians 2:15; 3:6; John 21:25).