Hinging on an earlier thread on this topic; here's a quotation from the text of the letter to all elders:
"The Kingdom Ministry School textbook emphasizes the importance of thorough preparation on the part of the study conductor. But this does not mean that he should introduce additional material from his own personal research and thus possible overshadow what has been published in the magazine. Extensive research has already been involved in producing the study article, and the points to be emphasized are those included in the paragraphs under consideration. When outside material is introduced, it often detracts from what "the faithful and discreet slave" has prepared for the congregation. (Matt 24:45-47) The impression may be given that the additional information from the conductor's research is of equal or greater value."
Now, check out this gem from the Quotes website:
*** Our Kingdom Ministry November 1999 pp.3-6 Use of the Internet-Be Alert to the Dangers! ***
20 The publications provided by Jehovah's organization stimulate our minds with upbuilding thoughts and train us "to distinguish both right and wrong." (Heb. 5:14) Can we say that this is achieved if others do our research for us?
21 The Beroeans were spoken of as "more noble-minded than those in Thessalonica." Why? Because "they received the word with the greatest eagerness of mind, carefully examining the Scriptures daily as to whether these things were so." (Acts 17:11) Although Paul and Silas preached to them, they could not make the truth their own without becoming personally involved.
22 Using another person's research for a talk or for other meeting preparation really defeats the purpose of personal study. Is it not your desire to build up your own personal faith in God's Word? Based on personal conviction, you can then make public expression of your faith-in your talks, in comments at the meetings, and in the field ministry. (Rom. 10:10) Using another person's research does not fit the description given at Proverbs 2:4, 5 to personally 'keep seeking and searching for the very knowledge of God as for hid treasures.'
Aren't these two bits of advice contradicting one another? First, you shouldn't highlight additional research .... then you shouldn't use others research, do your own. Isn't it simply amazing how the Society is able to twist the scriptures to suit their own changing agenda?