As far as I know, there is no proof whatever of the existence of an objective reality apart from our senses, and I do not see why we should accept th… - M. C. Escher

I first made this one [open spiral in which eyes, mouth and forehead of a woman are recognizable) but I cannot stand it that something is cut off. I thought, why is that human cut off here? Then I made two of them, who have together an [interconnected] endlessness. It is also meant as a reaction against sculptors. I see them as a little inferior - no, that is not well-expressed – but sculptors are too limited. They see sculpturing as something superior, but everybody can do modeling. Drawing is much more difficult, much more immaterial.

Baarn, 5 July 1964: 'On the train to Utrecht I was suddenly overwhelmed and enormously moved by a sky full of clouds at different levels. I experienced a sense of space and three-dimensionality such as I'd not experienced for a long time. It's possible to suddenly become aware of these things, even in an overpopulated country like Holland. Provided that you are looking up, you'll suddenly see that timeless and unbounded eternity. Do you think it silly, or can you imagine what I mean?

I was peculiarly moved by the angelic life growing on the ground. I have no idea what sorts of flowers grow there in profusion — I don’t know their names. But I was so moved that I sat down, trying to flatten as few grasses and plants as possible with my clumsy backside... This brought my head quite close to the silent, joyful, exuberant, celestial children of heaven. They are so humble, so quiet, and they do not mind if you observe them, if you think they are beautiful... Nor do they mind if you don’t look at all — they just stand there together all by themselves in the huge stretch of woods and grow and bloom just the same, peacefully, joyfully, and silently. I am absolutely sure that they know nothing of the swinish and filthy behaviour of people in their dirty stinking houses — they know only about heaven.