Summary

In the last forty years, society has become more and more worried about sustaining its own welfare. Today almost nobody considers possible to become richer without causing great damage to the planet. But the problem is not how rich we are, but in what we are rich. Goods based on knowledge make us wealthy without polluting. We need to change our old ways, and search new solutions, trust progress again. If we take the right direction, we can achieve what we need and want.