A majority of those who comment on the future prospects for mankind stress the problems associated with rapid population growth. With unrelieved gloom book follows book upon the prospects of a starving world as a consequence of the rising birth rate and the only solution usually offered is birth control.
The theory that the restriction of population is the only cure to present-day hunger and future outright starvation goes back to a book by Thomas Malthus firs published in 1789. His theory can be stated fairly simply; there are too many people on the earth and they are increasing too fast. Enough is not provided by nature for them all, therefore, poverty, vices, misery, the splitting of society into haves and have-nots leading to violence and wars. Most of these calamities could be avoided by stopping the growth of population. Malthus recommended the workers to practise birth control in order to remedy the social evils which they faced.