You're certain that you possess the Truth, inevitably offered with an implied uppercase T, and this certainty quickly devolves into dogmatism and righteousness, by which I mean a demonstrative, overweening pride in being so very right, in short, the arrogance of fundamentalism.
Estarán seguros de que poseen la Verdad, inevitablemente ofrecida con una V mayúscula implícita, y esta certeza se transforma rápidamente en dogmatismo y santurronería, y me refiero a un orgullo arrogante y efusivo de ser tan correctos, en resumen, la arrogancia del fundamentalismo.