The Hitchhiker's Guide to the Galaxy by Douglas Adams, r. Sep. 2011

p. 215: It said: The History of every major Galactic Civilization tends to pass through three distinct and recognizable phases, those of Survival, Inquiry and Sophistication, otherwise known as the How, Why and Where phrases. "For instance, the first phrase is characterized by the question How can we eat? the second by the question Why do we eat? and the third by the question Where shall we have lunch?"