“The prescription of the equality of human beings is not a description of an alleged actual equality among humans: it is a prescription of how we should treat human beings.”
“To survive, humans will work together. Accept each other. For a moment, we are all equal. Backs against the wall, human beings are at their finest.”
“Ethics is not a description of what people do; it's a prescription for what we all should do.”
“In what terms should we think of these beings, nonhuman yet possessing so very many human-like characteristics? How should we treat them? Surely we should treat them with the same consideration and kindness as we show to other humans; and as we recognize human rights, so too should we recognize the rights of the great apes? Yes.”
“How Can You Be Creative If Your Being Prescriptive?”
“Science fiction is not prescriptive; it is descriptive.”