Basically, in a nutshell:
We are right, we are right, we are right, Jehovah is right, we speak for Jehovah, we are right, We are Jehovah's only channel of communication, those appointed leaders by God's organisation are right, leaders are right, God's organisation is right, and IF YOU THINK FOR YOURSELF YOU ARE WRONG, WRONG WRONG, AND YOU ARE DISOBEYING JEHOVAH! His God-appointed leaders will lovingly adjust you and may shun you, lovingly, for your own good and to keep his organsation clean. Holy and clean.
Because we are right and you are wrong, and if you are wrong Jehovah will deny you life. Because if you arrogantly think for yourself and disobey his organisation you will be wrong, wrong, wrong, because we can only be right."
I find the bit about "secret doubts" to be particularly troubling. They actually want to get inside of everyone's head and make the R&F feel guilty for even having legitimate questions.
Yes, for the great sin of thinking.