I try in my prints to testify that we live in a beautiful and orderly world, and not in a formless chaos, as it sometimes seems.

For me it remains an open question whether [this work] pertains to the realm of mathematics or to that of art.

Wonder is the salt of the earth.

My work is a game, a very serious game.

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 the outside world as such solely by virtue of our senses.

I think I have never yet done any work with the aim of symbolizing a particular idea, but the fact that a symbol is sometimes discovered or remarked upon is valuable for me because it makes it easier to accept the inexplicable nature of my hobbies, which constantly preoccupy me.

The regular division of the plane into congruent figures evoking an association in the observer with a familiar natural object is one of these hobbies or problems...I have embarked on this geometric problem again and again over the years, trying to throw light on different aspects each time. I cannot imagine what my life would be like if this problem had never occurred to me; one might say that I am head over heels in love with it, and I still don't know why.