From the short story "The Enduring Chill"...

When people think they are smart - even when they are smart - there is nothing anybody else can say to make them see things straight, and with Asbury, the trouble was that in addition to being smart, he had an artistic temperament. She did not know where he had got it from because his father, who was a lawyer and businessman and farmer and politician all rolled into one, had certainly had his feet on the ground; and she had certainly always had hers on it. She had managed after he died to get the two of them through college and beyond; but she had observed that the more education they got, the less they could do. Their father had gone to a one-room schoolhouse through the eighth grade and he could do anything.