Odds are good that you primarily know one sort of person: highly educated, high-achieving, extremely cerebral, etc. Odds are also good that you give too much weight to feedback and ideas from this sort of person, while discounting arguments and complaints from people who don’t know the right way to persuade you. Try to keep that in mind.

Ezra Klein – Common mistakes made by economists. (via) I’ve come across a lot of good posts about arguments and opinions.