More ethnically homogeneous nations are better able to build public goods, are more democratic, less corrupt, have higher productivity and less inequality, are more trusting and care more for the disadvantaged, develop social and economic capital faster, have lower crime rates, are more resistant to external shocks, and are better global citizens, for example by giving more foreign aid. Moreover, they are less prone to civil war, the greatest source of violent death in the twentieth century.

–Dr. Frank Salter