 Malthus wrote a pamphlet defending the College, which was reprieved by the East India Company within the same year, 1817.In 1818, Malthus became a Fellow of the Royal Society.During the 1820s, there took place a setpiece intellectual discussion among the exponents of political economy, often called the Malthus–Ricardo debate after its leading figures, Malthus and theorist of free trade David Ricardo, both of whom had written books with the title "Principles of Political Economy".