Above my grandmother’s desk hung a picture of a bunch of flowers in a vase. At the age of twelve, I became aware that sunflowers were in the vase. At some point, I was told that a well-known artist named Van Gogh made the picture. When I was in high school, I noticed the Ben-Day dots of color that comprised the picture; this evidence suggested, to me, that this was a picture of a picture. It was a copy; and, given that my grandparents were smart, they knew it was a copy. At first, I admit, I felt snobbish and dismayed over the cheap imitation that hung before me; after all, I had made some of my own paintings by then and knew its “value.” When I asked my grandmother why she had the picture above her desk, she explained that they framed it a...