Although it is human nature to reproduce, Malthus argues that personal and over all population should be proportionate to supply of food through positive and preventative checks. For example, preventive checks are thinking ahead. Before having a family, Malthus argues that the parents should think ahead and have kids based on their wealth. Malthus thinks this will decrease the amount of people in poverty because poor people will not have as many poor kids. Therefore, Malthus thinks that poor people with large families are not educated enough to control the size of their family, thus creating their own misery. On the other hand, positive checks are natural ways in which population decreases. These include, "extreme poverty, bad nursing of children, great towns, excess of all kinds, the whole train of common diseases and epidemics, wars, plague, and famine" (36). Although these natural occurances are misfortunate, over all their effect on the population is positive. The lower population helps to keep the balance of food and human population. Through both these checks, population would keep in balance with food, preventing mass poverty.