We have a membership provided the ISTO doesn't declare all Earthians a barbarian people." "I don't know what that means," I persisted, even though th… - Sheri S. Tepper

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We have a membership provided the ISTO doesn't declare all Earthians a barbarian people."
"I don't know what that means," I persisted, even though this wasn't strictly part of the subject.
Father gritted his teeth. "ISTO recognizes four types of creatures: civilized, semicivilized, barbarians, and animals. Civilized people know about, care about, and protect their environments. Semicivilized people know and care, but can't do anything…"
"Why not?"
Mother said, "Because something prevents their acting in their own self-interest. Public apathy. Commercial interference. Religious opposition. Governmental corruption. The Gentherans say the humans have a lot of that."
Father frowned at her and went on. "Barbarians know but don't care about their worlds, and animals don't even know.