In popular cultures, "Extraterrestrials" are life forms — especially intelligent life forms— that are of extraterrestrial origin (often also called "aliens").
Famous quotes containing the words life and/or culture:
“The wind sprang up at four o’clock
The wind sprang up and broke the bells
Swinging between life and death”
—T.S. (Thomas Stearns)
“The highest end of government is the culture of men.”
—Ralph Waldo Emerson (1803–1882)