“ Are you really sure that a floor can't also be a ceiling? ”

— Maurits Cornelis Escher

“ What I give form to in daylight is only one per cent of what I have seen in darkness. ”

— Maurits Cornelis Escher

“ Only those who attempt the absurd will achieve the impossible. I think it's in my basement... let me go upstairs and check. ”

— Maurits Cornelis Escher