 Despite Boas's caveat about the intractability of white prejudice, he also considered it the scientist's responsibility to argue against white myths of racial purity and racial superiority and to use the evidence of his research to fight racism.Boas was also critical of one nation imposing its power over others.In 1916, Boas wrote a letter to "The New York Times" which was published under the headline, "Why German-Americans Blame America".