Knowledege, The Root of All Evil?

I recently saw the movie Radio (starring Cuba Gooding Jr. and Ed Harris) not too long ago. The story follows a retarted young man who is taken under a football coach's wing. The young man at first (named Radio--hence the title) would not say a word. As time progressed however, he began to take classes and even lead the football team out onto the field before every game. He faced peer pressure and even the death of his mother and always came out on top and always did the right thing.
One of Radio's finest features is his good heart. He recieved loads of Christmas presents from the town, only to give them all away to strangers the next day. However, he understood so little as to what he was doing that was right, and even smaller amounts of what was wrong. Radio was deprived of most knowledge, yet, he was a great man who did very little to hurt people. This brought me to a personal revelation. While knowledge is good, it is too big a burden for mankind to carry on its shoulders. I now understand for the first time that the forbidden fruit of knowledge really was a terrible thing. Radio serves as the perfect example of this. Because he could comprehend so little, he was told what was good, and did it. Sure he made his mistakes, but because he could only grasp what was right, he never did something wrong on purpose. This was when I realized that mankind cannot handle knowledge of good and evil. There is only one person who can handle both and can manage to be good in the end, and thats God. Lord of the Rings is another great example. In the book, the evil were filled with knowledge of secret passageways and weapons and traitors. The good also had their knowledge, the knowledge of strength, battle, courage, and the occational prophesey (if you're an elf). However, many of the good people wished to have no such knowledge, because their knowledge was still terrible and hard to grasp (like the Hobbits, they kept wishing that they were home in the Shire and that someone else was doing their dirty work).
In conclusion, do you agree that knowledge of good and evil was a curse or a blessing? With Radio, he comprehended so little, that he was close to the perfection he was at birth. Do you think this is the kind of knowledge that the Garden of Eden talked about? If so, do you agree that the apple was bad or not (I know some people would be happy we have this knowledge)? And do you think Heavan will be deprived/relieved of this knowledge? Just wondering what you guys think........