What at any rate seems certain is that when Friendship bears fruit which the community can use it has to do so accidentally, as a by-product. Religions devised for a social purpose, like Roman emperor-worship or modern attempts to “sell” Christianity as a means of “saving civilization,” do not come to much. The little knots of Friends who turn their backs on the “World” are those who really transform it. Egyptian and Babylonian Mathematics were practical and social, pursued in the service of Agriculture and Magic. But the free Greek Mathematics, pursued by Friends as a leisure occupation, have mattered to us more.
C.S. Lewis, The Four Loves (1960; Harcourt Brace: 1991) 68-69.