Aphorism

"We exclude because we dont understand....
We don't understand because of limited contact...
We lack contact because we exclude."

Took this off my Psychology text.. =) Was pretty amused at this statements. In the text it was mostly in context of disabled and special needs in our society. Taking it out of context, this "theory" applies to alot of other things...

Relate to people we have bad impression about and not wanting to "include" them
Relate to GOD who people not want to "include" in their life.
Relate to things that we exclude in our life.

We exclude because we just dont want to include something unknown (lack of understanding about the thing), a lack of understanding actually due to no or little opportunities interacting with the thing, but we must recognise that we lack contact because to start with, we just dont want to include because of the assumptions and belief we already have about the thing that we just dont want to reconstruct our thoughts to include the thing.

Dont know if it make sense to you..
but i think it made sense to me =)