Henri Matisse probably should have died in his early seventies, when cancer ravaged his body and he prepared his family for his demise under a surgeon’s knife. “But when the surgery was successful, Matisse quickly bounced back, declaring that he had won ‘a second life’ and, at 71, led his art in remarkable new directions… The 13 fruitful years that he unexpectedly gained after his cancer operation are the focus of ‘Matisse: A Second Life,’ an invigorating new exhibition at the Musée de Luxembourg.”