To repair cultural relics in the Forbidden City is to take care of history and to repair fossils in the laboratory is a dialogue with science. Fossils are the seal of time and the remains of life. Through fossils, scientists return to the past and explore the unknown. Starting from the story of fossil restorations such as those of keichousaurus and Ichthyosauria, the magnificence of geological environment is revealed, the mystery of science is explored, the scientific craftsmanship is discovered, the seal of time is opened, and another natural force and life is seen. This is a miracle of vision as well as a miracle of science.