Malthus was a famous British Scholar, a big influence in the demographic community, and a pioneer in political economy. Thomas Robert Malthus ( born February 1766 – dead December 1834) became famous following his observations concerning population growth of decline. He was the author of 6 essays on the Principle of Population, as well as other publications.
Based on the population explosion in the 18th century, Malthus predicted that food supply would not be able to keep up with population growth, thus leading to starvation. As a direct result, either famine, war or disease would obliterate or decrease the world's population - particularly in developing regions.
Malthus strongly encouraged developing regions to implement birth control in order to limit. Countries such as China have embraced such models, allowing them to continue growth without surpassing their carrying capacity.
You can't change human nature
Must it not then be acknowledged by an attentive examiner of the histories of mankind, that in every age and in every State in which man has existed, or does now exist
That the increase of population is necessarily limited by the means of subsistence,
That population does invariably increase when the means of subsistence increase, and,
That the superior power of population is repressed, and the actual population kept equal to the means of subsistence, by misery and vice.
Population, when unchecked, goes on doubling itself every 25 years or increases in a geometrical ratio.
Power of the Population
The power of population is indefinitely greater than the power in the earth to produce subsistence for man.