In popular cultures, "Extraterrestrials" are life forms — especially intelligent life forms— that are of extraterrestrial origin (often also called "aliens").
Famous quotes containing the word life:
“Sometimes it just takes stronger eyeglasses to cure those who are in love—and someone with the ability to imagine a face or a figure twenty years older might perhaps pass through life quite undisturbed.”
—Friedrich Nietzsche (1844–1900)