In the period of humanity’s manhood, the so-called “science” of economics, the “dismal science” of political economy, will become a genuine science based upon the laws of the time-binding energies of humanity; it will become the light of Human Engineering—promoter, guardian, and guide of human weal. For it will discover, and will teach that a _human_ life, a time-binding life, is not merely a _civilized_ life but a _civilizing_ life; it will know and will teach that a civilizing life is a life devoted to the production of potential and kinetic use-values—to the creation, that is, of material and spiritual wealth; it will know and will teach that wealth—both material and spiritual wealth—is a natural phenomenon—offspring of the marriage of Time and human Toil; it will know and will teach that the wealth in the world at any given moment is almost wholly the _inherited_ fruit of time and the labor of the dead; and so it will ask: To whom does the inheritance rightly belong? Does it of right belong to Smith and Brown? If so, _why_? Or does it of right belong to man—to humanity? If so, _why_? And what does “humanity” include? Only the living, who are relatively few? Or both the living and unborn? The Economics of humanity’s manhood will not only ask these questions but it will answer them and answer them aright. In seeking the answers, it will discover some obvious truths and many old words will acquire new meanings consistent with the time-binding nature of man. It will discover and will teach that the time-binders of a given generation are _posterity_ and _ancestry_ at once—posterity of the dead, ancestry of all the generations to come; it will discover and will teach that in this time-binding double relationship uniting past and future in a single living growing Reality, are to be found the obligations of time-binding ethics and the seat of its authority; economics will know and will teach that _human_ posterity—time-binding posterity—can not inherit the fruits of time and dead men’s toil _as animals inherit the wild fruits of the earth, to fight about them and to devour them_, but only as _trustees_ for the generations to come; it will know and will teach that "capitalistic" lust to _keep_ for SELF and “proletarian” lust to _get_ for SELF are both of them _space-binding_ lust—animal lust—beneath the level of time-binding life. The economics of humanity’s manhood will know and will teach that the characteristic energies of man as man are by _nature_ civilizing energies, wealth-producing energies, time-binding energies, the peaceful energies of inventive mind, of growing knowledge and understanding and skill and light; it will know and will teach that these energies of existing men united with one billion six hundred million available “sun-man” powers united with the ten billion living “man-powers of the dead,” if they be not wasted by ignorance and selfishness, by conflict and competition