Stanisław Staszic (1755–1826) was a Catholic priest, philosopher, geologist, writer, poet, and statesman. A leading figure of the Polish Enlightenment, he espoused monism, physiocracy and laissez-faire economics, and later Pan-Slavism. He is best remembered for his political writings in support of political reforms in Poland and of the Constitution of 1791. He continued his political career as a member of the State Council of the Duchy of Warsaw and as minister of trade and industry in the "Congress" Kingdom of Poland. Staszic is also noted as the father of Polish geology, statistics and sociology, and a promoter of exploration, mining and industry. In 1800, he co-founded the Warsaw Society of Friends of Learning, one of Poland's earliest scientific societies. (Full article...)