Last week Penelope Trunk had a good post on 5 things she was wrong about. I've found over and over again that people that are alright with being wrong are far more successful (and pleasant to work with) than people that have to be right. People that can be wrong have the right mix of confidence and humility -- two of my favorite qualities in a colleague. I recommend reading Penelope's full post, but in the excerpt below she captures why being able to be wrong makes people more successful. I liked it so much that I thought I'd post it here.

The real reason I don’t mind being wrong is that you can’t ever be right in a way that matters if you’re never wrong. Think about it: if you are right on something where everyone knows you’re right then it doesn’t matter that you’re right. If you are right about something where people think it’s surprising, then you take a risk of being wrong but you also open yourself up to the joy of surprising yourself with your own insight. It’s a risk high performers are willing to take.