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:
“I agree that we should work and prolong the functions of life as far as we can, and hope that Death may find me planting my cabbages, but indifferent to him and still more to the unfinished state of my garden.”
—Michel de Montaigne (1533–1592)