I want to tell you, Socialists, that I have studied your philosophy; read your works upon economics, and not the meanest of them; studied your standard works, both in English and German—have not only read, but studied them. I have heard your orators and watched the work of your movement the world over. I have kept close watch upon your doctrines for thirty years; have been closely associated with many of you, and know what you think and what you propose. I know, too, what you have up your sleeve. And I want to say that I am entirely at variance with your philosophy. I declare to you, I am not only at variance with your doctrines, but with your philosophy. Economically, you are unsound; socially, you are wrong; industrially, you are an impossibility.
Samuel Gompers, Founder of the American Federation of Labor, 1903