Of course “principles,” phrases, and catch-words are always invented to bolster up any policy which anybody wants to recommend. So in this case. The people who have led us on to shut ourselves in, and who now want us to break out, warn us against the terrors of “isolation.” Our ancestors all came here to isolate themselves from the social burdens and inherited errors of the old world. When the others are all over ears in trouble, who would not be isolated in freedom from care? When the others are crushed under the burden of militarism, who would not be isolated in peace and industry? When the others are all struggling under debt and taxes, who would not be isolated in the enjoyment of his own earnings for the benefit of his own family? When the rest are all in a quiver of anxiety, lest at a day’s notice they may be involved in a social cataclysm, who would not be isolated out of reach of the disaster? What we are doing is that we are abandoning this blessed isolation to run after a share in the trouble.

—William Graham Sumner, “The Conquest of the United States by Spain” (1898)