trade, your vocation, even your identity, from your father. If you were a farmer, you learned from your father when and how to plant, when and how to irrigate, when and how to harvest—not from a nearby agricultural college. If you made violins, you learned from your father what woods to choose, what sizes and ratios each piece had to maintain, what glues to use, and how to make and apply the finish. To put the matter differently, your father determined your identity, your training, your vocation.