When you were drunk or when you committed either fornication or adultery you recognized your own personal fallibility of that so mutable substitute for the apostles’ creed, the party line.
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a mutable substance
Love is the world’s infinite mutability; lies, hatred, murder even, are all knit up in it; it is the inevitable blossoming of its opposites, a magnificent rose smelling faintly of blood. —Tony Kushner, THE ILLUSION