[nachexnachex]

Just a note on the author's comment under Goya's painting. She advances that "unlike painting", in physics beauty can only be appreciated by those who understand their meaning. I disagree there's a difference in these disciplines, case in point, I knew Goya's painting long before becoming interested in grecoroman mythology, and I plainly didn't like it. Today I can appreciate the brutal tone of the painting knowing the story behind, and that has turned my view of the opus.

Another shocking example is El Expolio by El Greco, shocking technique but doubtful setting... until the author's intention is explained (or understood without further word), at that point it just becomes beautiful.

And in the same way that it's not necessary to know the story behind in art (you could like a painting for technique, looks alone), a layperson could like a mathematical formula for purely aesthetic reasons.

So all in all, I don't think mathematics and physics stand out in this regard.