In a rare moment of lucidity, the Watchtower made this startling confession:
Watchtower, April 15, 2005
Is taking in knowledge of God and Christ beyond our capacity? No. It is true that knowledge of the Creator’s works is endless. Yet, Jesus was not referring to astronomy or one of the other sciences when he linked "knowledge" and "everlasting life." Proverbs chapter 2, verses 1 and 5, indicates that the "sayings" and "commandments" found in the Bible are fundamental to "the very knowledge of God." And concerning Jesus, John 20:30, 31 indicates that the things written down are sufficient that we "may have life."
Hence, the knowledge of Jehovah and Jesus Christ as found in the Bible is sufficient to show you how to gain everlasting life. The Bible is a unique book. The Creator kindly inspired it in such a way that even unlettered men with limited opportunities can take in enough knowledge to gain everlasting life. Likewise, someone with a quick mind and with much time and means at his disposal will always be able to learn something new from the inspired Scriptures.