In popular cultures, "Extraterrestrials" are life forms — especially intelligent life forms— that are of extraterrestrial origin (often also called "aliens").
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“The richest princes and the poorest beggars are to have one great and just judge at the last day who will not distinguish between them according to their ranks when in life but according to the neglected opportunities afforded to each. How much greater then, as the opportunities were greater, must be the condemnation of the one than of the other?”
—Samuel Richardson (1689–1761)
“The hard truth is that what may be acceptable in elite culture may not be acceptable in mass culture, that tastes which pose only innocent ethical issues as the property of a minority become corrupting when they become more established. Taste is context, and the context has changed.”
—Susan Sontag (b. 1933)