But I've noticed something with other artists who do use the whole range of forms of colours and black - in Albers, for instance, who experiments with yellow, red, blue, the whole scale. Of course I love his colour paintings, but when I see a black-and-white such as 'The Homage to a Black and White Square' [ Josef Albers painted more versions], I like that best, you know. I think it has something to do with deciding just exactly what you really like best. There is always that wonderful element of doubt. I like the black painters really, even if they did work in color.... Velasquez.... also Tintoretto, and Rembrandt... Goya..