Our naturalization laws should be so amended as to make the inquiry into the character and good disposition of persons applying for citizenship more careful and searching … We accept the man as a citizen without any knowledge of his fitness, and he assumes the duties of citizenship without any knowledge as to what they are. The privileges of American citizenship are so great and its duties so grave that we may well insist upon a good knowledge of every person applying for citizenship and a good knowledge by him of our institutions. We should not cease to be hospitable to immigration, but we should cease to be careless as to the character of it. There are men of all races, even the best, whose coming is necessarily a burden upon our public revenues or a threat to social order. These should be identified and excluded.