Back in the fifteenth century, in a tiny village near Nuremberg, lived a family with eighteen children. Eighteen! In order merely to keep food on the table for this mob, the father and head of the household, a goldsmith by profession, worked almost eighteen hours a day at his trade and any other paying chore he could find in the neighborhood. Despite their seemingly hopeless condition, two of Albrecht Durer the Elder’s children had a dream. They both wanted to pursue their talent for art, but they knew full well that their father would never be financially able to send either of them to Nuremberg to study at the Academy.

After many long discussions at night in their crowded bed, the two boys finally worked out a pact. They would toss a coin. The loser would go down into the nearby mines and, with his earnings, support his brother while he attended the academy. Then, when that brother who won the toss completed his studies, in four years, he would support the other brother at...