"We have felt it necessary to dwell so long on an analysis of technology here because we have found that technological optimism is the most common and the most dangerous reaction to our findings from the world model. Technology can relieve the symptoms of a problem without affecting the underlying causes. Faith in technology as the ultimate solution to all problems can thus divert our attention from the most fundamental problem—the problem of growth in a finite system—and prevent us from taking effective action to solve it. On the other hand, our intent is certainly not to brand technology as evil or futile or unnecessary. We are technologists ourselves, working in a technological institution. We strongly believe ... that many of the technological developments mentioned here—recycling, pollution control devices, contraceptives—will be absolutely vital to the future of human society if they are combined with deliberate checks on growth. We would deplore an unreasoned rejection of the benefits of technology as strongly as we argue here against an unreasoned acceptance of them. Perhaps the best summary of our position is the motto of the Sierra Club: “Not blind opposition to progress, but opposition to blind progress.”"