That is a simple rule, and easy to remember. When I, a thoughtful and unblessed Presbyterian, examine the Koran, I know that beyond any question every Mohammedan is insane; not in all things, but in religious matters.
A man cannot be comfortable without his own approval. There is nothing more satisfying than that sense of being completely "at home" in your own skin. When you achieve that as a natural state of "being", then you can finally look beyond yourself and fully contribute all your talents to the world.
You may call a jay a bird. Well, so he is, in a measure--because he's got feathers on him, and don't belong to no church, perhaps;but otherwise he is just as much a human as you be. And I'll tell you for why. A jay's gifts and instincts, and feelings, and interests, cover the whole ground. A jay hasn't got any more principle than a Congressman.
My first American ancestor, gentlemen, was an Indian-an early Indian. Your ancestors skinned him alive, and I am an orphan. All those Salem witches were ancestors of mine. Your people made it tropical for them. . . . The first slave brought into New England out of Africa was an ancestor of mine-for I am a mixed breed, an infinitely shaded and exquisite Mongrel.