Annie Dillard said this quote

“ In Pliny I read about the invention of clay modeling. A Sicyonian potter came to Corinth. There his daughter fell in love with a young man who had to make frequent long journeys away from the city. When he sat with her at home, she used to trace the outline of his shadow that a candle’s light cast on the wall. Then, in his absence she worked over the profile, deepening, so that she might enjoy his face, and remember. One day the father slapped some potter’s clay over the gouged plaster; when the clay hardened he removed it, baked it, and showed it abroad (63). ”