“Science fiction is not prescriptive; it is descriptive.”

“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.”

“Ethics is not a description of what people do; it's a prescription for what we all should do.”

“Anything you dream is fiction, and anything you accomplish is science, the whole history of mankind is nothing but science fiction. ”

“Science fiction inspires scientists, but it doesn't exist to dictate what our future should look like. Great science fiction is fun to read and it makes you think, period. Claiming anything more than that is dicey. Grand visions of the future were more prevalent in the golden-age science fiction, but all fiction is a reflection of the current times. As science moves more quickly, the horizon of science fiction tends to recede closer to the present.”

“When you view your world exclusively through the lens of science, your prescription will never be strong enough.”