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 have no doubt that they lived pretty much the same sort of life in the Homeric age, for men have always thought more of eating than of fighting; then, as now, their minds ran chiefly on the “hot bread and sweet cakes;” and the fur and lumber trade is an old story to Asia and Europe.”
—Henry David Thoreau (1817–1862)