This sentiment has been sometimes decried, sometimes misunderstood, but as regards its existence there can be no doubt. Irresistibly we seek after all which, according to our notions, can ameliorate our destiny, and we avoid all which is likely to deteriorate it. This is at least as certain as it is that every material molecule possesses centripetal and centrifugal force. And just as the double movement of attraction and repulsion is the grand spring of the physical world, we may affirm that the double force of human attraction towards happiness and human repulsion from pain is the mainspring of the social mechanism.

But it is not enough that man is irresistibly led to prefer good to evil; he must also be able to discern what is good and what is evil. This is what God has provided for in giving him that marvellous and complex mechanism called intelligence. To fix his attention, to compare, judge, reason, connect effects with causes, to remember, to foresee; such are—if I may use the expression—the wheels of that admirable machine.

The impulsive force which is possessed by each of us moves under the direction of our intelligence. But our intelligence is imperfect. It is liable to error. We compare, we judge, we act in consequence; but we may err, we may make a bad choice, we may tend towards evil, mistaking it for good, or we may shun good, mistaking it for evil. This is the first source of social dissonances; and it is inevitable, for this reason, that the great motive spring of humanity—personal interest—is not, like material attraction, a blind force, but a force guided by an imperfect intelligence. Let us be very sure, then, that we shall not see Harmony except under this restriction. God has not seen proper to found social order or Harmony upon perfection, but upon human perfectibility, our capacity for improvement. If our intelligence is imperfect, it is improvable. It develops, enlarges, and rectifies itself. It begins of new and verifies its operations. Experience at each moment puts us right, and Responsibility suspends over our heads a complete system of punishments and rewards. Every step that we take on the road of error plunges us into increased suffering, and in such a way that the warning cannot fail to be heard, and the rectification of our determinations, and consequently of our actions, follows, sooner or later, with infallible certainty.

Under the impulse which urges him on, ardent to pursue happiness, prompt to seize it, man may be seeking his own good in the misery of others. This is a second and an abundant source of [p497] discordant social combinations. But the limit of such disturbances is marked; and they find their inevitable doom in the law of Solidarity. Individual force thus misapplied calls forth opposition from all the analogous forces, which, antagonistic to evil by their nature, repel injustice and chastise it.

It is thus that progress is realized, and it is not the less progress from being dearly bought. It springs from a native impulse, which is universal and inherent in our nature, directed by an intelligence which is frequently misled, and subjected to a will which is frequently depraved. Arrested on its march by Error and Injustice, it receives the all-powerful assistance of Responsibility and Solidarity to enable it to surmount these obstacles, and it cannot fail to receive that assistance since it springs from these obstacles themselves.

This internal, universal, and imperishable motive power, which resides in each individual and constitutes him an active being, this tendency of every man to pursue happiness and shun misery, this product, this effect, this necessary complement of sensibility, without which sensibility would be only an inexplicable scourge, this primordial phenomenon which is at the bottom of all human actions, this attractive and repulsive force which we have denominated the mainspring of the social mechanism, has had for detractors the greater part of our publicists; and this is one of the strangest aberrations which the annals of science present.

It is true that self-interest is the cause of all the evils, as it is of all the good, incident to man. It cannot fail to be so, since it determines all our acts. Seeing this, some publicists can imagine no better means of eradicating evil than by stifling self-interest. But as by this means they would destroy the very spring and motive of our activity, they have thought proper to endow us with a different motive force, namely, devotion, self-sacrifice. They hope that henceforth all transactions and social combinations will take place at their bidding, upon the principle of self-abandonment. We are no longer to pursue our own happiness, but the happiness of others; the warnings of sensibility are to go for nothing, like the rewards and punishments of Responsibility. All the laws of our nature are to be reversed; the spirit of sacrifice is to be substituted for the instinct of preservation; in a word, no one is to think longer on his own personality, but for the purpose of hastening to sacrifice it to the public good. It is from such a universal transformation of the human heart that certain publicists, who think themselves very religious, expect to realize perfect social harmony. They [p498] have forgotten to tell us how they hope to effect this indispensable preliminary, the transformation of the human heart.

If they are foolish enough to undertake this, they will find that they want the power to accomplish it. Do they desire the proof of what I say? Let them try the experiment on themselves; let them endeavour to stifle in their own hearts all feeling of self-interest, so that it shall no longer make its appearance in the most ordinary actions of life. They will not be long in finding out their powerlessness. Why, then, pretend to impose upon all men, without exception, a doctrine to which they themselves cannot submit?

I confess myself unable to see anything religious, unless it be in intention and appearance, in these affected theories, in these impracticable maxims which they affect so earnestly to preach, while they continue to act just as the vulgar act. Is it, I would ask, true and genuine religion which inspires these catholic economists with the presumptuous thought that God has done His work ill, and that it is their mission to repair it? Bossuet did not think so when he said, “Man aspires to happiness, and he cannot help aspiring to it.”

Declamations against personal interest never can have much scientific significance; for self-interest is part of man’s indestructible nature—at least, we cannot destroy it without destroying man himself. All that religion, morals, and political economy can do is to give an enlightened direction to this impulsive force—to point out not only the primary, but the ulterior consequences of those acts to which it urges us. A superior and progressive satisfaction consequent on a transient suffering, long continued and constantly increased suffering following on a momentary gratification; such, after all, are moral good and evil. That which determines the choice of men towards virtue is an elevated and enlightened interest, but it is always primarily a personal interest.