"You weren't supposed to have judgment, Grandpa?"
"Well, if you were judgmental, that might hurt someone else's self-esteem."
"So you couldn't tell the homeless to go get a job like you had, because it would hurt their self-esteem?"
"Exactly. It would be cultural imperialism -- and that would be wrong because one culture is just as good as another."
"But, in our history class, we learned that people from all over the world were trying desperately to get into the United States -- some paying to get smuggled in from Mexico or Asia, some trying to cross the Caribbean in leaky boats and drowning."
"Why, yes, that happened."
"But, if all cultures were equal, why were these people risking their lives trying to go from one culture to another?"
"I never really thought about that, honey. Gee, they must be working you pretty hard in school, to have you doing all this thinking."
"Aren't people supposed to think, Grandpa?"
"I suppose it's all right for those who like it. I don't want to be judgmental."