Thomas Jefferson

[...]become industrially independent of Europe, to manufacture at home enough for her own consumption "and no more." She was also to seize every opportunity to eliminate dangerous neighbors, not that she really coveted any territory or colony held by foreign powers, not that she needed new land for a surplus of population; but she could not keep out of European politics if Europe remained at her doors and used her colonies as a "fulcrum for her intrigues." Spain was so weak that nothing had to be feared directly from her, but her colonies could be seized at any time by more powerful enemies; France should not be permitted again to set her foot on the American continent. As to England, she was to be expelled from her continental dominions whenever America would be strong enough to enforce the "American jus gentium," and the sea was to be neutralized.[...].