If you enjoy learning as well as making other people happy, you'll love this idea.
Almost everyone feels that their own opinions are good ones, other wise they wouldn't be sharing them with you. One of the destructive things that many of us do, however, is compare someone else's opinion to our own. And, when it doesn't fall in line with our belief, we either dismiss it or find fault with it. We feel smug, the other person feels diminished, and we learn nothing.
Almost every opinion has some merit, especially if we are looking for merit, rather than looking for errors. The next time someone offers you an opinion, rather than judge or criticize it, see if you can find a grain of truth in what the person is saying.
Don't sweat the small stuff by Richard Carlson