““An American is a man who is greater in his soul than in his class, creed, political party, or the section in which he lives. To be an American, a man must have an American soul and believe in the spiritual realities upon which America rests and out of which America was born. America was created to unite mankind by those passions which lift and not by the passions which separate and debase. We came to America … to get rid of the things that divide and make sure of the things that unite…. [T]he man who seeks to divide men from men, group from group, interest from interest in this great Union is striking at its very heart.””