This thread reminds me of the school playground one person starts an argument and others join in till it does not matter what anyone says the fight is more important.

You can bang someone's head against the wall in hopes of knocking YOUR truth into them. All you really do is give them concussion.

The more someone tells me what I should think or do the more likely I am not to listen to them. My mum used to say "If you have to say the same thing more than once they wont listen any better the second time."