Frédéric Bastiat (1801-1850) merits a hallowed place in the annals of political economy. A member of the French Liberal, or laissez-faire, school of economists that included the great J. B. Say, Bastiat marshaled logic, clarity, and exuberant wit in the cause of understanding society, prosperity, and liberty. In a series of brief essays and pamphlets, and a treatise on political economy, Bastiat taught, contra Rousseau, that there is a natural harmonious order to the social world, an order that emanates from the free exchange between human beings driven to satisfy unlimited wants with limited resources. The result is a steady progress in the material well-being of all. Interference with that freedom, and with its corollaries, property and competition, he wrote, leaves people poorer as well as oppressed. This is so because interference bars individuals from the creative action they otherwise would have engaged in. The fruits of the creativity thus forgone are "what is not seen" in any act of intervention.