Athanasian Creed
"Even if Catholics faithful to Tradition are reduced to a handful, they are the ones who are the true Church of Jesus Christ" (Coll. Selecta SS. Eccl. Patrum. Caillu and Guillou, Vol. 32, pp 411-412; "Words of Encouragement from St. Athanasius").
Shield of the Trinity
From Wikipedia's article on the Athanasian Creed:
