BY PENNY SCHWARTZ (JTA) – Most people spend their later years looking back. Harold Grinspoon has spent his reinventing himself. The businessman became a philanthropist. The philanthropist discovered Jewish children’s books and created PJ Library. In his late 80s, he became a sculptor after a cherry tree fell in his yard. Now, as he turns 97, Grinspoon is reflecting on the unexpected pivots that have defined both his life and his [...]