ThirstyFish

I'll bite. Why do you think "The Catholic Church teaches a false Gospel"?

There are two principles at work in arguing "The Truth". The first is, "that which is transmitted is limited by the capacity of the receiver". It's pretty self-evident; Even if we assume The Gospel to be "The Truth", we are still limited by our own capacity to understand it. The second is a little more tricky; "A partial truth is never The Whole Truth". This is reminiscent of Liebig's law of the minimum: "Plant or crop growth is controlled not by the total amount of resources available, but by the scarcest resource (limiting factor)". In other words, your comprehension or understanding of The Gospel, or more broadly "The Truth", is mostly "limited" to your greatest handicap - whatever that may be. For example, if you do have an empathy deficit, your comprehension of The Gospel will be limited by that.

That is why "reasoning" gets you so far. "The Truth" inherently encapsulates the unknown and most probably "the unknowable". I do not think, as "creations", human beings were meant to grasp "The Whole Truth". We only have the capacity to deal with "partial truths". Any claim to the contrary is "blatantly false". Therefore, if you claim to know the True Gospel, you are in error.

The gentleman in the photograph, holding the sign, is not explicitly claiming to know "The Truth". He is claiming that the Catholic interpretation of the Gospel is false. What I'm claiming is that every interpretation is inherently false and incomplete. We may only talk about the degree of error, but even that is limited by our own assumptions. Assumption-free comprehension [of the Whole] is impossible. Hence, we're only as correct as our conscious, and mostly unconscious, assumptions.

• The Tao that can be told is not the eternal Tao.
• The name that can be named is not the eternal name.
• The nameless is the beginning of heaven and earth.
• The named is the mother of ten thousand things.
• Ever desireless, one can see the mystery.
• Ever desiring, one can see the manifestations.
• These two spring from the same source but differ in name;
•         this appears as darkness.
• Darkness within darkness.
• The gate to all mystery.
• -- Tao Te Ching, Chapter 1