If I have a Grand Unified Theory Of Everything, it's this: I believe that people always do things that make sense to them. Hard as it is to believe with all the hurting out there, almost nobody hurts others just to be a jerk. So if you want to change human behavior on a grand scale, you can't tell people "stop being a jerk." You have to dissect and then recreate their models of the world until being a jerk doesn't make sense.
While I think there's some truth to this, it's easy for me to come up with examples of things I've done that never made sense to myself.
Here's the new thread for posting quotes, with the usual rules: