The Creed (a.k.a. The Baptismal Profession of Faith)
The Sacraments of Faith
The Life of Faith
The Prayer of the Believer
This was a new one on me. I have never heard of the "four pillars of the Catholic Church" used as a term before, and I can't find it anywhere, in the Catechism, for instance. Then I found that it was used in the context of the Catechism - it's four sections, as enumerated above; where it refers to "the four pillars of the Catholic Catechism" NOT Church. The only pillar of the Catholic Church would be Jesus Christ. Resting on Him would be the Church which would include revelation both from the Bible and Tradition, and the ministerial priesthood, which would include the sacraments.