From Skepchick:

I love that most everyone here is willing to be wrong about everything.

Through disagreements, we are able to see our views reflected back at us and change them if necessary. Or, even if they don’t change, we may gain insight into just why we hold a particular view.

That’s how I try to approach my whole life.  It’s just as rewarding to “lose” an argument as to be right in the first place.  Either way, it means I come out of the discussion feeling smart.