No one before Bernini had managed to make marble so carnal. In his nimble hands it would flatter and stream, quiver and sweat. His figures weep and shout, their torsos twist and run, and arch themselves in spasms of intense sensation. He could, like an alchemist, change one material into another - marble into trees, leaves, hair, and, of course, flesh.  
     -   Simon Schama’s Power of Art. Bernini