The true friend is the other who hopes you’ll answer the call, who’s willing to challenge you and upset you in order to get you to look at yourself and ask yourself: What am I doing? What do I love? Who am I? The true friend is the other who has the courage to impose a conviction, who paints a substantive picture of the good, who prods and prompts you to change course and chase it—and promises to join you on the way.