Here's their own answer from three different mags:
Could a religion caught up in abuse and fraud possibly be "true"?
OTWO, could you please provide the citation for the Watchtower that has this quote:
"A religion that teaches lies cannot be true."
I can only make out that it's December 1st, but can't tell which year.
*** w91 12/1 p. 7 Is Any Religion Good Enough? ***
What will guide us in choosing the right religion? The Encyclopædia Universalis is correct when it highlights the importance of truth. A religion that teaches lies cannot be true. The greatest prophet that ever walked on earth stated: “God is a Spirit, and those worshiping him must worship with spirit and truth.”—John 4:24.
"Practice what you preach"
"Actions speak louder than words"
*** w98 6/1 p. 6 Wait Patiently ***
Actions Speak Louder Than Words
Peter focuses attention on deeds and actions. He refers to “holy acts of conduct” as well as “deeds of godly devotion.” (2 Peter 3:11) What do these involve?
The real servant of God acts in a way that pleases Him. The faith of such a true worshiper is reflected in his conduct. This distinguishes him from those who merely speak of belief in God and his promises.
*** w54 1/15 p. 51 par. 13 Rearing Children in the New World Society ***
Never forget that your actions speak louder than your tongue, that your example says more than your words. Sometimes if you practice your principles you do not even have to preach them
*** pe chap. 25 p. 208 par. 1 For Satan’s World, or God’s New System? ***
There is an old saying that actions speak louder than words. If you believe in God’s new system, it is the way you live your life that will really prove it.
This map is pretty kool (I Think)
Could a religion ... possibly be "true"?
That's all the question needs to be.