OK, a rather sentimental book that I'm fond of from 1934. This quote might be too easy, but if I'm wrong, I'll add another later today.
"Colley, you are—umph—a splendid example of—umph—inherited traditions. I remember your grandfather—umph—he could never grasp the Ablative Absolute. A stupid fellow, your grandfather. And your father, too—umph—I remember him—he used to sit at that far desk by the wall—he wasn't much better, either. But I do believe—my dear Colley— that you are—umph—the biggest fool of the lot!"