 He was also influenced by Adam Smith's "The Wealth of Nations" and drew on the writings of Montesquieu.The replication of Abad y Queipo's arguments in Humboldt's work doubtless gave them a larger audience than they previously garnered.The Bourbon Reforms had resulted in the virtual exclusion of American-born Spanish men from attaining high office, and increased alienation between peninsular-born Spaniards and the American-born.