I listen to podcasts while running/walking and heard this in an Anthony Lewis talk and thought it worth sharing:
The applicant seems to be a woman of superior character and intelligence, obviously more than ordinarily desirable as a citizen of the United States. It is agreed that she is qualified for citizenship except [for her] . . . extreme opinion in favor of pacifism and a statement that she would not bear arms to defend the Constitution. So far as the adequacy of her oath is concerned I hardly can see how that is affected by the statement, inasmuch as she is a woman over fifty years of age, and would not be allowed to bear arms if she wanted to. ... ...The notion that the applicant's optimistic anticipations would make her a worse citizen is sufficiently answered by her examination which seems to me a better argument for her admission than any that I can offer. Some of her answers might excite popular prejudice, but if there is any principle of the Constitution that more imperatively calls for attachment than any other it is the principle of free thought-not free thought for those who agree with us but freedom for the thought that we hate. I think that we should adhere to that principle with regard to admission into, as well as to life within this country. And recurring to the opinion that bars this applicant's way, I would suggest that the Quakers have done their share to make the country what it is, that many citizens agree with the applicant's belief and that I had not supposed hitherto that we regretted our inability to expel them because they believed more than some of us do in the teachings of the Sermon on the Mount
UNITED STATES V. SCHWIMMER, 279 U.S. 644 (1929)