No need for an air conditioner here—just leave the window open, and a refreshing breeze blows in. People in Cambridge are always surprised when they hear I’m spending August in Hawaii. “Why would you want to spend summer in a hot place like that?” they invariably ask. But they don’t know what it’s like. How the constant trade winds from the northeast make summers cool. How happy life is here, where we can enjoy lounging around, reading a book in the shade of trees, or, if the notion strikes us, go down, just as we are, for a dip in the inlet.