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:
“Your Christians, whom one persecutes in vain, have something in them that surpasses the human. They lead a life of such innocence, that the heavens owe them some recognition: that they arise the stronger the more they are beaten down is hardly the result of common virtues.”
—Pierre Corneille (1606–1684)