“Perched on a wheeled stool under a bright spotlight [at the National Gallery of Art], [Robert] Price leaned into a 200-year-old marble sculpture carved by Frenchman Jean-Pierre-Antoine Tassaert, his gloved right hand using a cotton swab to remove decades of grime from its base. … [He] twisted a fluff of cotton onto a wooden stick, dipped it in a special water solution and painstakingly worked it over a small area of marble. He repeated the process, again and again and again, for hours.” – The Washington Post