" My research shows that improving the quality of education is a cost-free way to raise prosperity. it's cost-free because it reinforces so many of the other things we need to keep the virtuous cycle rolling that, ultimately, the increase in economic benefits far outstrips the cost of the investment. Education brings more people into the comfort zone of higher income, which increases trust, then causes people to demand better government, which further increases the trust, which further reduces inequality, which increases the pool of those who will get a good education. "