In the 5th Century, an Egyptian named Arenius set out to live a holy life by abandoning the community he lived in and living in the desert as a monk. After several years of living in the wilderness, he visited the city of Alexandria, where he spent time wandering through the markets and bazaars. A Christian in Alexandria asked him why he spent so much time wandering through the shops if he had renounced possessions and worldly comforts. He responded that he was filled with joy at the sight of so many things that he didn’t need. Arenius had learned an important truth that Benjamin Franklin late...