My friend asked to borrow money, saying he needed it urgently and would pay it back next month. I lent him the money. Next month he didn’t bring it up, and I didn’t either. The month after that, he got a new phone and posted it on his social feed. I commented, “Nice phone.” He replied instantly, “The one I borrowed.” I said, “What about the money I lent you?” He fell silent, then privately messaged me: “Are you implying something about me on your feed? Is that necessary?” I suddenly understood: People who borrow money will always feel more righteous than the lenders.