The planets are never the same twice, they're always different, so they could compare the markings I had drawn with their current photographs and they knew that I was drawing what I was really seeing and it wasn't copied from… — Clyde Tombaugh Copy Share Image
One of the interesting things I discovered is that in the late 19th century, painters actually had black-and-white copies made of their own paintings. They chose it even over photographs because they knew the photographic medium would distort their work. — Robert Longo Copy Share Image
