““In his last years, Michelangelo worked on new pietà sculptures—not for any pope, but for his own diversion and probably for his own tomb. His eyesight had never recovered from his torment on the ceiling of the Sistine, and by this point in his life he was almost blind. He was sculpting more by feel than by sight—and yet he persevered, even trying new carving techniques right up until six days before his death.””