Again, back to the original purpose of this thread: "Jesus answered: Amen, amen I say to thee, unless a man be born again of water and the Holy Ghost, he cannot enter into the kingdom of God."
The above quote is from Christ Himself, translated into Latin by St Jerome, further translated into English by church-approved authorities and it is written in plain english. With child-like simplicity, we are to read this literally, with no commentary, or explanation or interpretation required because the Church has said this is how this passage is to be understood. The Church has told us there is no symbolic meaning of the above verse. If one were to ask a 6 year old what this verse means, he would be able to understand it immediately, because the truth is simple. The answer is that Christ is saying that the sacrament of baptism (i.e. WATER baptism) is absolutely necessary for salvation. There are no qualifiers, no exceptions, no options.
This is Church teaching. This agrees with the other infallible, council definitions. This MUST be believed. All other Doctors, Saints, and theologians who contradict the above, also contradict the councils of Florence and Trent, and are WRONG. If there is conflict between a fallible source (theologians, saints, etc) and an infallible source (i.e. Scripture, Dogmatic council statements) the infallible source WINS because nothing is allowed to contradict a solemn teaching of the Faith.