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:
“I notice well that one stray step from the habitual path leads irresistibly into a new direction. Life moves forward, it never reverses its course.”
—Franz Grillparzer (1791–1872)
“When women finally get liberated, they’ll do the same that men do—dog eat dog— that’s what our culture is.... Not cooperation but assassination. Women will cooperate until they attain certain goals. Then one will begin to destroy the other.”
—Alice Neel (1900–1984)