It is a pretty structure isn't it? It makes you think of something solid, stable, well-linked. In fact it happens also in chemistry as in architecture that beautiful edifices, that is, symmetrical and simple, are also the most sturdy: in short, the same thing happens with molecules as with the cupolas of cathedrals of the arches of bridges.

On the structure of alloxan, in "Nitrogen". - The Periodic Table (1975)