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:
“Never in my life have I met anyone who did not agree that Emerson is an inspiring writer. One may not accept his thought in toto, but one comes away from a reading of him purified, so to say, and exalted. He takes you to the heights, he gives you wings. He is daring, very daring. In our day he would be muzzled, I am certain.”
—Henry Miller (1891–1980)