In the 259 years ago, the main consumption theorem, although the role of the population disaster in England was quite abstract, in February 13th, 1766 (January 5th, 1766), he was born in the British economist Malthus. Malthus was a British economist when he lived. The author of the book "Democracy", Malthus Robert Malthus was also brought to school after he received a scholarship from the University of Cambridge University of Jesus, but in his university period, he was well taught, and therefore at the University of Malthus, February 13th, 1766 and December 23th, he was one of the nine highest qualified in agriculture, he was appointed as the theoretical teacher at home when he had not received the degree of scholar at the University of Cambridge, and in 1784 he was