After Herberholz had shown me all sorts of techniques, I suddenly got very interested in etching. I had a lot to say, I had a subject. Wash off the acid, put on the aquatint: a wonderful technique that you can use to get as many different shades and tones as you want. The 'doing' aspect of art becomes tremendously interesting when you start doing etchings; you get to be a real alchemist.