We are inherently bound to our frames of reference. One of the ways to develop new insights is to consider other perspectives, even as we may disagree. I believe this is one of the ways that I have been able to develop new perspectives.
I recently wrote about this in my monthly Jewish Tribune article. See further http://www.jewishtribune.ca/TribuneV2/index.php/201001132493/Know-how-to-answer-the-heretic.html
Rabbi Ben Hecht