[Madison] Grant is most famously the author of the popular book The Passing of the Great Race in 1916, an elaborate work of racial hygiene detailing the "racial history" of Europe. Coming out of Grant's concerns with the changing "stock" of American immigration of the early 20th century (characterized by increased numbers of immigrants from Southern and Eastern Europe, as opposed to Western and Northern Europe), Passing of the Great Race was a "racial" interpretation of contemporary anthropology and history, stating race as the basic motor of civilization. Similar ideas were proposed by Gustav Kossinna in Germany. Grant promoted the idea of the "Nordic race" - a loosely defined biological-cultural grouping rooted in Scandinavia - as the key social group responsible for human development; thus the subtitle of the book was The racial basis of European history. As an avid eugenicist, Grant further advocated the separation, quarantine, and eventual collapse of "undesirable" traits and "worthless race types" from the human gene pool and the promotion, spread, and eventual restoration of desirable traits and "worthwhile race types" conducive to Nordic society:
A rigid system of selection through the elimination of those who are weak or unfit - in other words social failures - would solve the whole question in one hundred years, as well as enable us to get rid of the undesirables who crowd our jails, hospitals, and insane asylums. The individual himself can be nourished, educated and protected by the community during his lifetime, but the state through sterilization must see to it that his line stops with him, or else future generations will be cursed with an ever increasing load of misguided sentimentalism. This is a practical, merciful, and inevitable solution of the whole problem, and can be applied to an ever widening circle of social discards, beginning always with the criminal, the diseased, and the insane, and extending gradually to types which may be called weaklings rather than defectives, and perhaps ultimately to worthless race types.
In the book Grant recommends segregating unfavorable races in ghettos by installing civil organizations through the public health system to establish quasi-dictatorships in their particular fields. He states the expansion of non-Nordic race types in the Nordic system of freedom would actually mean a slavery to desires, passions, and base behaviors. In turn, this corruption of society would lead to the subjection of the Nordic community to "inferior" races who would in turn long to be dominated and instructed by "superior" ones utilizing authoritarian powers. The result would be the submergence of the indigenous Nordic races under a corrupt and enfeebled system dominated by inferior races and both in turn would be subjected by a new ruling race class.