We have lost ground on what good character means. It is because it has become harder and harder to know what is right in different contexts. Can we refer to a woman according to her biological sex? Can we ask people to respect different faiths even when they don’t agree? Is it okay to suggest that the level of sensuality in the government-funded Mardi Gras is not ‘family-friendly’? What might happen if we disagree with schools secretly encouraging students to believe they can actually become the opposite sex to that which they were born?

Not so long ago, such questioning of...