Tumblr founder David Karp lives a "spartan" life with his $1.6 million 1,600 square-foot Williamsburg loft outfitted with a restaurant-grade kitchen, explains Forbes's Jeff Bercovici in this month's ...

Inward-looking and self-sufficient, the Spartans were the most feared hoplites (infantrymen) in all Greece. They lived an austere life, despising any sort of luxury, in a city that contained neither ...