Fundamentals of Prosperity is a business and success self-help classic by Roger A. Babson that has this passage included: "The fact is, we have become crazy over material things. We are looking only at the structure above ground. We are trying to get more smoke from the chimney. We are looking at space instead of service, at profits instead of volume. With our eyes focused on the structure above ground, we have lost sight of those human resources, thrift, imagination, integrity, vision and faith which make the structure possible. I feel that only by the business men can this foundation be strengthened before the inevitable fall comes."