The rapid Progress _true_ Science now makes, occasions my regretting sometimes that I was born so soon. It is impossible to imagine the Height to which may be carried, in a thousand years, the Power of Man over Matter. We may perhaps learn to deprive large Masses of their Gravity, and give them absolute Levity, for the sake of easy Transport. Agriculture may diminish its Labour and double its Produce; all Diseases may by sure means be prevented or cured, not excepting even that of Old Age, and our Lives lengthened at pleasure even beyond the antediluvian Standard. O that moral Science were in as fair a way of Improvement, that Men would cease to be Wolves to one another, and that human Beings would at length learn what they now improperly call Humanity! Mixed with Franklin's other feelings about war, as we have seen, was a profound sense of its pecuniary wastefulness. It was the greediest of all rat-holes, an agency of impoverishment worse even than the four specified in Poor Richard's couplet, "Women and Wine, Game and Deceit, Make the Wealth small and the Wants great." When [he asked Benjamin Vaughan] will princes learn arithmetic enough to calculate, if they want pieces of one another's territory, how much cheaper it would be to buy them, than to make war for them, even though they were to give a hundred year's purchase? But, if glory cannot be valued, and therefore the wars for it cannot be subject to arithmetical calculation so as to show their advantage or disadvantage, at least wars for trade, which have gain for their object, may be proper subjects for such computation; and a trading nation, as well as a single trader, ought to calculate the probabilities of profit and loss, before engaging in any considerable adventure. This however nations seldom do, and we have had frequent instances of their spending more money in wars for acquiring or securing branches of commerce, than a hundred years' profit or the full enjoyment of them can compensate.