Worried about the meaning of existence? You might turn to Raj Patel's book The Value of Nothing. It comes from an Oscar Wilde quote: "Nowadays people know the price of everything but the value of nothing."
Patel's message about how we value -- and misvalue -- the world and ourselves isn't entirely new. Citing Buddhist economist E.F. Schumacher, he says what we need to strive for is a middle path: one where our financial and economic choices aren't dominated by Big Brother or big corporations. And he feels the viability of our future depends on us organizing and fighting for a society in which we value meeting people's basic needs over greed.