Though from what I read, Sammy never really said human came from animals, he's simply pointing out the facts that animals have a lot of similarities to animals. And technically, forming your opinion based upon other knowledge can mean going with the flow as you're not really creating other materials for other people to comprehend in, so unless you can provide other knowledge for other people to comprehend in, you're just merely reforming what you know based upon what you learn from other people, that to me doesn't sounds like forming an opinion, sounds more like reforming information. And to go beyond, sometime you must go with the flow first before you can go beyond that stage, its like school, you must go through the foundation knowledge first before you can make any new knowledge that's likely to be based upon that foundation knowledge, but your different interpretation of that knowledge.
And morning guys~ :3