Was Malthus a ‘Utilitarian’? This apparently simple-minded question is justified by on-going debate in the secondary literature. For example, in his study, The Classical Economists, D. P. O'Brien maintains that ‘only the two Mills, apart from Bentham himself, were really Utilitarians’. Against this we have the view of Lord Robbins that ‘We get the picture badly out of focus if we conceive that reliance on the principle of utility was confined to Bentham and his immediate circle.’ In this paper we shall demonstrate the justice of the Robbins perspective with specific reference to the population issue.

The object of this article is to examine, with the work of Jeremy Bentham as the principal example, one strand in the complex pattern of European social theory during the second half of the eighteenth century. This was of course the period not only of the American and French revolutions, but of the culmination of the movements of thought constituting what we know as the Enlightenment. Like all great historical episodes, the Enlightenment was both the fulfilment of long-established processes and the inauguration of new processes of which the fulfilment lay in the future. Thus the seminal ideas of seventeenth-century rationalism (in moral and social theory the idea, above all, of natural law) realized and perhaps exhausted their potentialities in the eighteenth-century Enlightenment. The ideas with which this article is concerned, however—conveniently grouped and labelled as the ideas of utilitarianism—only began to achieve systematic development in these later decades of the eighteenth century. Within that period—during the first half and more of Bentham's long life—attempts to apply those ideas to the solution of social problems met largely with failure and frustration. Yet unrealized potentialities remained, the realization of which was reserved for a time when the world of the philosophes no longer existed. The movements for social and political reform which have played so large a part in modern history since the French Revolution may be judged in widely differing ways; but whatever the verdict, these movements surely cannot be understood without due consideration of that part of their origins which lies in eighteenth-century utilitarianism.

Bentham was an influential thinker with an ‘essentially practical mind’. His influence on British social and political reform, however, was indirect, coming largely after his death and largely through the work of his disciples. Bentham's own attempts to put his ideas directly into practice generally had little effect. He came closest to success in the area of penal policy, winning a contract from Pitt's government in the early 1790s to build and manage a penitentiary that was to be organized on the panopticon principle. Bentham saw the penitentiary as the spearhead of prison reform and as a means of effecting a change from transportation to imprisonment as a punishment for serious crime. While Bentham's use of the panopticon principle itself has attracted most attention in the literature, there was more to his scheme than this. The penitentiary proposals were worked out in great detail, they were a conscious application of his theory of punishment, and they were consistent with and an element of his all-embracing plan of social, political, and constitutional reform.

Students of Mill's political theory know that he was both a political reformer and a social philosopher. An important part of Mill's life involved political struggles over the electoral franchise and schemes of parliamentary representation, the legal and social emancipation of women, land law and economic policy, and freedom of speech and the press. When turning to his best known writings such as On Liberty, Considerations on Representative Government, Principles of Political Economy and The Subjection of Women, issues of reform intrude at almost every point. Even his more philosophical writings—Utilitarianism, An Examination of Sir William Hamilton's Philosophy and System of Logic — can be seen as attacks on or supports for those theories of man and society which Mill sees as hindering or furthering ‘the improvement of mankind’. Moreover, Mill's subsidiary careers as a journalist, editor of the London and Westminster Review and member of parliament further demonstrate his commitment to political reform.

John Stuart Mill's crisis of 1826 has received a great deal of attention from scholars. This attention results from reflection on the importance of the crisis to Mill's mature thought. Did the crisis signal rejection or revision of Benthamism? Or did it have little or no effect on Mill's view of his intellectual inheritance? Ultimately, an interpretation of the cause and resolution of the crisis is integral to an understanding of the nature of Mill's moral and social philosophy. Scholars, in their zeal to understand Mill's crisis, have suggested various reasons for both the onset of the crisis and the recovery. Yet Mill's own perception of his crisis has often been overlooked or rejected.