Can you quote a few wt articles...
"One God alone could be supreme and all-powerful; and one such God could mean only one true religion, namely, the one right worship of this one supreme, almighty God. His religion is one of right belief and is harmonious in all its expressions, just as true physical science is harmonious and not self-contradictory. The true religion of the one God does not disagree with itself, deny itself or get divided with itself. If it had internal disagreement, contradiction and disunity, it could never stand; it could not be simple truth; it would disagree with the scientific laws of the universe; it could not triumph in the long-drawn-out conflict between true religion and false. But true religion must triumph, because truth cannot be destroyed. That is why, despite all the many false religions in the world, the true religion has lived through till this day..."--Watchtower 11/15/1963
“We need to scrutinize whatever is presented to us, deciding what to accept and what to reject. However, we do not want to be so narrow that we refuse to consider facts that can improve our thinking… Test whatever you are reading or watching, to see if it is truthful…”—official WT web site, http://www.watchtower.org/library/g/2000/6/22/article_03.htm
The Truth That Leads to Eternal Life 1968 p.13 Why It Is Wise to Examine Your Religion:
4 However, you have no doubt heard people say: "It doesn't matter what you believe, as long as you lead a clean moral life and deal kindly with your neighbors." But is that all there is to worshiping God in an acceptable way? These things are necessary, but God requires more. Doctrines are also involved. The Bible informs us that "the true worshipers will worship the Father with spirit and truth." (John 4:23) If our worship is to be acceptable to God, it must be firmly rooted in God's Word of truth. Jesus reproved those persons who claimed to serve God but who relied heavily on the traditions of men in preference to God's Word. He applied to them God's own words from Isaiah 29:13, saying: "It is in vain that they keep worshiping me, because they teach commands of men as doctrines." (Matthew 15:9) Since we do not want our worship to be in vain, it is important for each one of us to examine his religion.
5 We need to examine, not only what we personally believe, but also what is taught by any religious organization with which we may be associated. Are its teachings in full harmony with God's Word, or are they based on the traditions of men? If we are lovers of the truth, there is nothing to fear from such an examination. It should be the sincere desire of every one of us to learn what God's will is for us, and then to do it.-John 8:32.