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:
“Allow me, whom Fortune always desires to bury, lay down my life in these final trivialities. Many have freely died in longlasting loves, among whose number may the earth cover me as well.”
—Propertius Sextus (c. 50–16 B.C.)