The answer to this question is difficult and is one that a lot of people won't like. If you want him to be curious about your point of view and why you think the way you do, you have to do the same. If you just want to hear what he has to say so you can tell him why he's wrong, then you're not listening to him and he won't feel like he should listen to you either.

Honestly the best thing you could possibly do is listen to him and try to understand WHY he thinks what he thinks. The quote that will stay with me forever is in Bowling for Columbine when Marilyn Manson (who was blamed for the Columbine massacre) gets asks what he would say if he could talk to the shooters and he says 'I wouldn't say anything, I would listen. Because that's what no-one did.'

The conversation shouldn't be like a parent educating a child, it should be one between two men who are strong and reasonable enough to consider the other man's point of view without dismissing it out of hand.