I—PLAN OF A TREATISE ON MORALS
That great science which regards nature and the operations of the human mind, is popularly divided into Morals and Metaphysics. The latter relates to a just classification, and the assignment of distinct names to its ideas; the former regards simply the determination of that arrangement of them which produces the greatest and most solid happiness. It is admitted that a virtuous or moral action, is that action which, when considered in all its accessories and consequences, is fitted to produce the highest pleasure to the greatest number of sensitive beings. The laws according to which all pleasure, since it cannot be equally felt by all sensitive beings, ought to be distributed by a voluntary agent, are reserved for a separate chapter.
The design of this little treatise is restricted to the development of the elementary principles of morals. As far as regards that purpose, metaphysical science will be treated merely so far as a source of negative truth; whilst morality will be considered as a science, respecting which we can arrive at positive conclusions.
The misguided imaginations of men have rendered the ascertaining of what IS NOT TRUE, the principal direct service which metaphysical science can bestow upon moral science. Moral science itself is the doctrine of the voluntary actions of man, as a sentient and social being. These actions depend on the thoughts in his mind. But there is a mass of popular opinion, from which the most enlightened persons are seldom wholly free, into the truth or falsehood of which it is incumbent on us to inquire, before we can arrive at any firm conclusions as to the conduct which we ought to pursue in the regulation of our own minds, or towards our fellow beings; or before we can ascertain the elementary laws, according to which these thoughts, from which these actions flow, are originally combined.
The object of the forms according to which human society is administered, is the happiness of the individuals composing the communities which they regard, and these forms are perfect or imperfect in proportion to the degree in which they promote this end.
This object is not merely the quantity of happiness enjoyed by individuals as sensitive beings, but the mode in which it should be distributed among them as social beings. It is not enough, if such a coincidence can be conceived as possible, that one person or class of persons should enjoy the highest happiness, whilst another is suffering a disproportionate degree of misery. It is necessary that the happiness produced by the common efforts, and preserved by the common care, should be distributed according to the just claims of each individual; if not, although the quantity produced should be the same, the end of society would remain unfulfilled. The object is in a compound proportion to the quantity of happiness produced, and the correspondence of the mode in which it is distributed, to the elementary feelings of man as a social being.
The disposition in an individual to promote this object is called virtue; and the two constituent parts of virtue, benevolence and justice, are correlative with these two great portions of the only true object of all voluntary actions of a human being. Benevolence is the desire to be the author of good, and justice the apprehension of the manner in which good ought to be done.
Justice and benevolence result from the elementary laws of the human mind.