Diane von Furstenberg watched as Jane Fonda opened up on a range of subjects from Hollywood mergers to toxic politics on Thursday in Venice, Italy and couldn’t help but notice something about the iconic actress and activist. “You are so much stronger than you’ve ever been,” praised the fashion designer as Fonda came quickly with a reason for her steely spirit. “Well, I’m almost 90, and so it’s easier to be so. I’ve always been brave. I just didn’t always know what to be brave about until my mid-30s. It’s like resilience, you’re either born with it, or you’re not,”...