Some other good quotes from that source:
On the contrary, experience shows that it is the more healthy and more
vigorous that emigrate, and not the reverse...
all the empty nonsense about international solidarity was knocked out of the heads
of the...working classes. A few weeks later, instead of this stupid talk sounding
in their ears, they heard the noise of American-manufactured shrapnel bursting above
[their] heads, as a symbol of international comradeship...
[Early Americans] earned their daily livelihood as trappers and hunters, etc.,
frequently wandering about in large groups with their women and
children, their mode of existence very much resembling that of ordinary
nomads. The moment, however, that they grew more numerous and were able
to accumulate larger resources, they cleared the land and drove out the
aborigines, at the same time establishing settlements which rapidly
increased all over the country.