Now we have transgressed; grievously transgressed--and we are suffering grievous penalties. But pain is really kind. Pain is the importunate tocsin which rouses to dangerous realities and spurs to the seeking of a cure. As a matter of fact we are confusedly aware of our evil plight, and legion are the remedies to-day proposed. Some of these are mere quack nostrums. Others contain valuable remedial properties. To be sure, there is probably no _one_ curative agent, since our troubles are complex and magic elixirs heal only in the realm of dreams. But one element should be fundamental to all the compoundings of the social pharmacopoeia. That element is _blood_. It is clean, virile, genius-bearing blood, streaming down the ages through the unerring action of heredity, which, in anything like a favorable environment, will multiply itself, solve our problems, and sweep us on to higher and nobler destinies. What we to-day need above all else is a changed attitude of mind--a recognition of the supreme importance of heredity, not merely in scientific treatises but in the practical ordering of the world's affairs. We are where we are to-day primarily because we have neglected this vital principle; because we have concerned ourselves with dead things instead of with living beings. This disregard of heredity is perhaps not strange. It is barely a generation since its fundamental importance was scientifically established, and the world's conversion to even the most vital truth takes time. In fact, we also have much to unlearn. A little while ago we were taught that all men were equal and that good conditions could, of themselves, quickly perfect mankind. The seductive charm of these dangerous fallacies lingers and makes us loath to put them resolutely aside. Fortunately, we now know the truth. At last we have been vouchsafed clear insight into the laws of life. We now know that men are not, and never will be, equal. We know that environment and education can develop only what heredity brings. We know that the acquirements of individuals are either not inherited at all or are inherited in so slight a degree as to make no perceptible difference from generation to generation. In other words: we now know that heredity is paramount in human evolution, all other things being secondary factors. This basic truth is already accepted by large numbers of thinking men and women all over the civilized world, and if it becomes firmly fixed in the popular consciousness it will work nothing short of a revolution in the ordering of the world's affairs.