Scientists are fascinated by Escher's work because they recognize in it not only a concept of the world with which they are familiar but also a similar attitude toward that world. For them as for him, the plurality of the world signifies neither absurdity nor chaos but a challenge to look for new logical relationships between phenomena.

There is something in such laws that takes the breath away. They are not discoveries or inventions of the human mind, but exist independently of us. In a moment of clarity, one can at most discover that they are there and take them into account. Long before there were people on the earth, crystals were already growing in the earth's crust. On one day or another, a human being first came across such a sparkling morsel of regularity lying on the ground or hit one with his stone tool and it broke off and fell at his feet, and he picked it up and regarded it in his open hand, and he was amazed.