For the same reason, there are none of our vices which are not directly or indirectly the causes of poverty. Idleness paralyzes efforts, which are the sinews of production. Ignorance and error give our efforts a false direction. Improvidence lays us open to deceptions. Indulgence in the appetites of the hour prevents the accumulation of capital. Vanity leads us to devote our efforts to factitious enjoyments, in place of such as are real. Violence and [p094] fraud provoke reprisals, oblige us to surround ourselves with troublesome precautions, and entail a great waste and destruction of power. I shall wind up these preliminary observations on man with a remark which I have already made in relation to his wants. It is this, that the elements discussed and explained in this chapter, and which enter into and constitute economical science, are in their nature flexible and changeable. Wants, desires, materials and powers furnished by Nature, our muscular force, our organs, our intellectual faculties, our moral qualities, all vary with the individual, and change with time and place. No two men, perhaps, are entirely alike in any one of these respects, certainly not in all—nay more, no man entirely resembles himself for two hours together. What one knows another is ignorant of—what one values another despises—here nature is prodigal, there niggardly—a virtue which it is difficult to practise in one climate or latitude becomes easy in another. Economical science has not, then, like the exact sciences, the advantage of possessing a fixed measure, and absolute unconditional truths—a graduated scale, a standard, which can be employed in measuring the intensity of desires, of efforts, and of satisfactions. Were we even to devote ourselves to solitary labour, like certain animals, we should still find ourselves placed in circumstances in some degree different; and were our external circumstances alike, were the medium in which we act the same for all, we should still differ from each other in our desires, our wants, our ideas, our sagacity, our energy, our manner of estimating and appreciating things, our foresight, our activity—so that a great and inevitable inequality would manifest itself. In truth, absolute isolation, the absence of all relations among men, is only an idle fancy coined in the brain of Rousseau. But supposing that this antisocial state, called the ‹state of nature›, had ever existed, I cannot help inquiring by what chain of reasoning Rousseau and his adepts have succeeded in planting Equality there? We shall afterwards see that Equality, like Wealth, like Liberty, like Fraternity, like Unity, is the end; it is not the starting point. It rises out of the natural and regular development of societies. The tendency of human nature is not away from, but towards, Equality. This is most consoling and most true.