http://web.mit.edu/persci/people/adelson...w_illusion.html

(Conti Reklame in England: All you would expect from German Engineering: dull, grey and reliable)

Andreas
There's no greys, only white that's got grubby. I'm surprised you don't know that. And sin, young man, is when you treat people as things. Including yourself. That's what sin is. Terry Pratchett