My 33-year-old daughter died in 2022 from metastatic melanoma, which had spread throughout her body and taken over her brilliant brain. Claire Hays Montaigne, a new mother and a physician, lived heroically for two years with her cancer as we and her doctors scoured the globe for a breakthrough drug. Her hopes of survival dashed, Claire didn’t complain—except for one time. After she emerged from a grueling two-week stint in the hospital, I told her that she looked beautiful despite everything.