Walking the Path of Light was an uphill battle in several ways. The 72-year-old had to fit it in around an unexpected new day job – taking over at Epsom College after its previous head was shot dead by her husband. In the middle of the walk, he was diagnosed with significant heart disease. He is also candid about struggling to find both “an audience and enthusiasm for the whole project”. “I’m not certain how much the world wants to know about human goodness,” he laments. “I think the world is much more eager to know about bad people. Look...