Despite some pretty glaring counterexamples — both Jessica Simpson and Bill Gates jump to mind — beauty and brains tend to got together, as Beauty and the Brainy explains:
Satoshi Kanazawa of the London School of Economics and his colleague, Jody L. Kovar, assert that beautiful people also tend to be smart people — and vice versa.In the July issue of Intelligence, the sociologists offer a theory to explain the confluence of beauty and brains. Their argument, in a nutshell: Intelligent men achieve higher status and marry beautiful women, who pass their genes on to their disproportionately attractive and smart kids, who win mates who are good-looking or brainy, and so on. Or at least that’s what they put forth in the journal article, “Why Beautiful People are More Intelligent.”
(Hat tip to Marginal Revolution.)