I'm a lay-Catholic & I have authority to only convey Church teachings & pray I am doing it faithfully. There is One, Holy Catholic & Apostolic Church.> & The Church has one authentic teaching & one Truth. The Catechism explains the truth & it should not be confused with speculative-theology.
If one lacks the authority to represent authentic teachings of your church, then why would one do so at all? This goes for speaking in support just as surely as it does for speaking in condemnation of other beliefs.
If citing the catechism provides an answer to the question at hand, please cite it. Referring every question to Teh Goggle is not something that most find particularly persuasive.