understand the need to prevent excessive growth of population.
Essay on the Causes of Rapid Population Growth ..
“If it were possible to suppose that man might be adequately stimulated to labor under a system of common property, such land might be cultivated, and the production of food and the increase of population might go on till the soil absolutely refused to grow a single additional quarter, and the whole society was exclusively engaged in procuring the necessaries of life. But it is quite obvious that such a state of things would inevitably lead to the greatest degree of distress and degradation.”
But due to excessive population growth back-log (uncovered burden) ..
“Unchecked, Malthus said, populations tend to grow in a geometric progression and at a rate that would double the numbers about every 25 years. Food supplies at best, he thought, could increase in arithmetic progression. The superior power of population growth over the means of subsistence require that population growth would eventually be checked, if not by preventative measures, then by the positive inroads of starvation, disease, war, etc. which he grouped under the heading of misery and vice.”