"To discover to the world something which deeply concerns it, and of which it was previously ignorant; to prove to it that it had been mistaken on some vital point of temporal or spiritual interest, is as important a service as a human being can render to his fellow creatures..."
John Stuart Mill, "On Liberty"
David Leonhardt, in the New York Times, looks at new survey on work/life balance and which careers provide the highest economic penalty for taking time off. The current economy could change all of this.