This document summarizes the views of several important economic philosophers and social reformers from the 18th and 19th centuries. It describes the ideas of Adam Smith, Thomas Malthus, David Ricardo, John Stuart Mill, Jeremy Bentham, Robert Owen, Charles Fourier, Henri de Saint-Simon, Karl Marx and Friedrich Engels regarding economics, population growth, labor, socialism, and capitalism. It also outlines the efforts of William Wilberforce to abolish slavery in the British Empire and the work of Jane Adams establishing settlement houses to provide social services to the poor.