It’s a subject that’s been on my mind. Older women. They’ve been the target of jokes forever. Now that I’m a little older myself, I’m not so sure I like that. And neither does clinical psychologist and bestselling author Mary Pipher. Pipher wrote a seminal book about adolescent girls called “Reviving Ophelia.” Now, she’s traveled to the other end of the age spectrum with “Women Rowing North.” It’s about flourishing as we age.