I can't think of anyone who has challenged my intelligence, but they are often unable to understand my beliefs, especially regarding politics and religion. We can't have a decent discussion because they get defensive right away, and either seem to imply that I'm an idiot or try to convert me. It's too big a task to try to convert someone, I'm just trying to understand them.

That's how to avoid dogma. True science welcomes challenges. That's the whole premise of it. If we refuse to allow debate, we're no different from a religious zealot. My take on it anyhow. We grow though self and mutual questioning. I even squirm at some of the things my younger self was so sure of at the time. It keeps our hearts humble and minds open to be challenged.

I agree it won't hurt a thing to listen to another person's point of view at least for a little while.

Hell, I challenge my own intelligence every day. I'm with silvereyes with the idea that people that don't accept challenge stagnate.