And it may be especially useful to apply this advice to weblog publishing in the age of instant gratification. Think about it before you hit that post button. From Edwin Tait via Shawn McElhinney:
We always make our opponents out to be more radical than they are, so that we can position ourselves as part of the mainstream. But in times of great social tension this polarizing game can become an extremely dangerous form of self-fulfilling prophecy. We use the alleged radicalism of our opponents as an excuse to become radical ourselves, and thus prompt our opponents to follow suit, turning them into the monsters we thought they were all along (and so justifying further extremism on our part).