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:
“To my fancy, one looks back on life, it has only two responsibilities, which include all the others: one is the bringing of new life into existence; the other, educating it after it is brought in. All betrayals of trust result from these original sins.”
—Henry Brooks Adams (1838–1918)
“Education must, then, be not only a transmission of culture but also a provider of alternative views of the world and a strengthener of the will to explore them.”
—Jerome S. Bruner (20th century)