How Michael J. Fox Stays Optimistic Even When Times Are ToughAfter a hard year for everyone, the beloved actor has some advice: No matter the circumstances, optimism is possible.

Michael J. Fox is flat on the floor in his Manhattan kitchen. It's 6:30 a.m. on August 13, 2018. He is supposed to go shoot a scene for the movieSee You Yesterday,but he has fallen and broken his arm. For the first time in his life, despite writing three books about optimism, he can't see a bright side. On that floor now, there's not even a glimmer.

This is how Fox opens his latest book,No Time Like the Future.He knows how it feels to be set back — something everyone has felt, in some way, this year. He was diagnosed with Parkinson's disease at age 29, in the white heat of his fame. Two decades later, doctors discovered an unrelated tumor that could paralyze him; it took months to recover from the surgery. But even now, he is finding ways to feel positive. In this conversation, he shares how to strive for an enduringoptimism.