“Still, through a complex combination of optimism and longing and bravado, you would round it up. While a cruder name for this process is lying , one could make a case that delusion is a variant of generosity. After all, you practiced rounding up on Kevin from the day he was born.

Me, I’m a stickler. I prefer my photographs in focus. At the risk of tautology, I like people only as much as I like them. I lead an emotional life of such arithmetic precision, carried to two or three digits after the decimal, that I am even willing to allow for degrees of agreeableness in my own son. In other words, Franklin: I leave the $17.”