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An Essay on the Principle of Population

The book An Essay on the Principle of Population was first published anonymously in 1798 through J. Johnson (London). The author was soon identified as The Reverend Thomas Robert Malthus. While it was not the first book on population, it has been acknowledged as the most influential work of its era. Its 6th Edition was independently cited as a key influence by both Charles Darwin and Alfred Russel Wallace in developing the theory of natural selection. Warning: template has been deprecated.

PRINCIPLE OF POPULATION ,

AS IT AFFECTS

THE FUTURE IMPROVEMENT OF SOCIETY.

WITH REMARKS

ON THE SPECULATIONS OF MR. GODWIN,

M. CONDORCET,

AND OTHER WRITERS.

PRINTED FOR J. JOHNSON, IN ST. PAUL'S

CHURCHYARD.

The following Essay owes its origin to a conversation with a friend, on the subject of Mr. Godwin's Essay, on avarice and profusion, in his Enquirer. The discussion, started the general question of the future improvement of society; and the Author at first sat down with an intention of merely stating his thoughts to his friend, upon paper, in a clearer manner than he thought he could do, in conversation. But as the subject opened upon him, some ideas occurred, which he did not recollect to have met with before; and as he conceived, that every, the least light, on a topic so generally interesting, might be received with candour, he determined to put his thoughts in a form for publication.

​ The essay might, undoubtedly, have been rendered much more complete by a collection of a greater number of facts in elucidation of the general argument. But a long and almost total interruption, from very particular business, joined to a desire (perhaps imprudent) of not delaying the publication much beyond the time that he originally proposed, prevented the Author from giving to the subject an undivided attention. He presumes, however, that the facts which he has adduced, will be found, to form no inconsiderable evidence for the truth of his opinion respecting the future improvement of mankind. As the Author contemplates this opinion at present, little more appears to him to be necessary than a plain statement, in addition to the most cursory view of society, to establish it.

​ It is an obvious truth, which has been taken notice of by many writers, that population must always be kept down to the level of the means of subsistence; but no writer that the Author recollects, has inquired particularly into the means by which this level is effected: and it is a view of these means, which forms, to his mind, the strongest obstacle in the way to any very great future improvement of society. He hopes it will appear, that, in the discussion of this interesting subject, he is actuated solely by a love of truth; and not by any prejudices against any particular set of men, or of opinions. He professes to have read some of the speculations on the future improvement of society, in a temper very different from a wish to find them visionary; but he has not acquired that command over his understanding which would enable him to believe what ​ he wishes, without evidence, or to refuse his assent to what might be unpleasing, when accompanied with evidence.

The view which he has given of human life has a melancholy hue; but he feels conscious, that he has drawn these dark tints, from a conviction that they are really in the picture; and not from a jaundiced eye, or an inherent spleen of disposition. The theory of mind which he has sketched in the two last chapters, accounts to his own understanding, in a satisfactory manner, for the existence of most of the evils of life; but whether it will have the same effect upon others must be left to the judgement of his readers.

If he should succeed in drawing the attention of more able men, to what he conceives to be the principal difficulty in ​ the way to the improvement of society, and should, in consequence, see this difficulty removed, even in theory, he will gladly retract his present opinions, and rejoice in a conviction of his error.

June 7, 1798.

CHAP. VIII.

CHAP. XIII.

CHAP. XVII.

CHAP. XVIII.

This work was published before January 1, 1929, and is in the public domain worldwide because the author died at least 100 years ago.

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• An Essay on the Principle of Population Summary

by Thomas Malthus

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Malthus observes that humans tend to like having sex, which means that inevitably (especially before modern contraceptives) humans would likely continue to make children at a constant rate. But since two people can have more than two children, and each of those children can have even more children, population growth is not arithmetical, but rather geometric.

What Malthus means by 'arithmetical' and 'geometric' is simply that some systems produce at the level of addition and subtraction, and other systems work differently. If it works by process of addition, it is arithmetical, and if it works by process of multiplication, such as population growth, it is geometric.

So Malthus concludes from that basic study of the systems of population growth that we can expect the population to double every 25 years. By the way, Malthus's mathematical analysis is understood by most people to be incorrect, but his idea is still powerful. Could humans populate at such a rate that eventually, we exhaust our resources, and what would happen if that were the case?

He then explains that he is not predicting a doomsday, or an apocalypse, but rather, that given our understanding of mathematics, humans should begin to consider their effect on the environment as an exponentially powerful animal, since our biological existence means that we must sustain ourselves by using natural resources.

Malthus continues by explaining that many of the variables in the sustainability question are fluid, such as the potential development of new technologies to advance agriculture and infrastructure. Instead of offering a creative solution, he leaves the question open for audience participation, because after all, we're all on the same planet, so overpopulation is a risk that could potentially effect the entire race if not treated with scientific attention.

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An Essay on the Principle of Population

Thomas Malthus (1766 - 1834)

The power of population is indefinitely greater than the power in the earth to produce subsistence for man. Population, when unchecked, increases in a geometrical ratio. Subsistence increases only in an arithmetical ratio. A slight acquaintance with numbers will show the immensity of the first power in comparison with the second (Malthus).

Genre(s): *Non-fiction, Nature, Philosophy

Language: English

An essay on the principle of population

The book An Essay on the Principle of Population was first published anonymously in 1798 through J. Johnson (London) . The author was soon identified as The Reverend Thomas Robert Malthus . While it was not the first book on population, it has been acknowledged as the most influential work of its era. Its 6th Edition was independently cited as a key influence by both Charles Darwin and Alfred Russel Wallace in developing the theory of natural selection.

A key portion of the book was dedicated to what is now known as Malthus’ Iron Law of Population – this name itself is retrospective, based on the iron law of wages, which is the reformulation of Malthus’ position by Ferdinand Lassalle, who in turn derived the name from Goethe’s “great, eternal iron laws” in Das Göttliche . This theory suggested that growing population rates would contribute to a rising supply of labour that would inevitably lower wages. In essence, Malthus feared that continued population growth would lend itself to poverty.

One immediate impact of Malthus’s book was that it fueled the debate about the size of the population in Britain and led to (or at least greatly accelerated) the passing of the Census Act 1800. This Act enabled the holding of a national census in England, Wales and Scotland, starting in 1801 and continuing every ten years to the present.

In 1803, Malthus published a major revision to his first edition, as the same title second edition; his final version, the 6th edition, was published in 1826 . However, in 1830, Malthus published a condensed version as A Summary View on the Principle of Population , which also included remarks about criticisms of the main book, 32 years since the first edition.

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An Essay on the Principle of Population

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Summary and Study Guide

An Essay on the Principle of Population by Thomas Malthus was first published anonymously in 1798. Its core argument, that human population will inevitably outgrow its capacity to produce food, widely influenced the field of early 19th century economics and social science. Immediately after its first printing, Malthus’s essay garnered significant attention from his contemporaries, and he soon felt the need to reveal his identity. Although it was highly controversial, An Essay on the Principle of Population nevertheless left its impression on foundational 19th century theorists, such as naturalist Charles Darwin and economists Friedrich Engels and Karl Marx. Modern economists have largely dismissed the Malthusian perspective . Principally, they argue Malthus underappreciated the exponential growth brought about by the advent of the Industrial Revolution; by the discovery of new energy sources, such as coal and electricity; and later by further technological innovations. These modern criticisms are easily defended with historical retrospective.

Malthus’s essay has been revised several times since its publication. This summary focuses on the contents of the first edition. In 1806, Malthus revamped his work into four books to further discuss points of contention in the first edition and address many of the criticisms it received. Three more editions followed (published in 1807, 1817, and 1826 respectively), each modifying or clarifying points made in the second version.

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Although Malthus’s basic stance on the unsustainable growth of population to food production remains the same throughout all versions, the most dramatic change in format and content is found between the first and second editions. The first edition is notable for its long and detailed critique of the works of William Godwin, Marquis de Condorcet, and Richard Price on the perfectibility of humankind. Its lack of “hard data” and its unpracticed opinions on sex and reproduction were heavily criticized by his contemporaries. The 1806 publication, written at a later point in Malthus’s life, attempts to address these issues by focusing less on critiquing the works of other theorists and offering better data on the fluctuation of population growth throughout various European countries and colonies (Malthus, Thomas Robert. An Essay on the Principle of Population: the 1803 edition . Yale University Press. 2018).

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An Essay on the Principle of Population begins with a preface and is subsequently separated into eleven chapters. The preface reveals that a conversation with a friend on the future improvement of society was what sparked Malthus’s inspiration for this work. Chapter 1 further credits the works of David Hume, Alfred Russel, Adam Smith, and many others for inspiring his own writing. He postulates that population grows exponentially, whereas food production only increases in a linear fashion. This disparity in power will inevitably lead to overpopulation and an inadequate amount of food for subsistence.

Chapter 2 further details the above premise. Malthus imagines a world of abundance. In such a society of ease and leisure, no one would be anxious about providing for their families, which incentivizes them to marry early, causing birth rates to explode. When there are too many people and too little an increase in food to support them, the lower classes will be plunged into a state of misery. Thus, Malthus concludes that population growth only happens when there is an increase in subsistence, and misery and vice keep the world from overpopulation.

In chapters 3, 4, and 5, Malthus applies his theory to different stages of society. He argues that “savage” and shepherding societies never grow as fast as their “civilized” counterparts because various miseries keep their numbers in check. Among “savage” societies, a lack of food and a general disrespect of personal liberties prevent their numbers from increasing rapidly. Shepherding communities, meanwhile, often wage war over territories and suffer a high mortality rate. Civilized societies grew rapidly after adopting the practice of tilling, but due to exhausting most fertile land, their numbers no longer increase at the same rate as before.

The following two chapters are notable because they are the only ones that contain hard data. Malthus cites philosopher Richard Price for his analysis of population in America and references demographer Johann Peter Süssmilch for his work on Prussia. Malthus uses both these examples to prove that population fluctuates in accordance with the quantity of food produced. Chapters 8 and 9 are dedicated to critiquing mathematician Marquis de Condorcet’s work while chapters 10 to 15 do the same for political philosopher William Godwin. Malthus rejects the idea of mankind as infinitely perfectible and dismisses charity as a method to relieve poverty.

Chapters 16 and 17 propose the increase of food production as the only solution to reduce extreme poverty and misery among the lower class. Malthus maintains that donating funds is but a temporary relief to aid the most unfortunate; only a permanent increase in agricultural yield can grow the lower class’s purchasing power. Nevertheless, the final two chapters remind readers that misery and happiness must coexist. The law of nature, the way of living intended by God and demonstrated by Malthus’s population theory, requires both wealth and poverty to function.

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