Dr Isabel Dalhousie is a philosopher, a graduate of Cambridge University, and the editor of the quarterly Review of Applied Ethics. She is perhaps the most famous philosopher in the world at the present time. Her philosophical ruminations are read by tens of millions of people all over the globe. I suspect that many people are guided by her moral precepts and, like me, are besotted with her honest, fair and charming personality. She lives a life of independent means—thanks to a substantial inheritance—in Edinburgh with her husband Jamie, a bassoonist, and their infant son Charlie. Isabel, Jamie and Charlie…