Measure For Measurement's Sake.
At a terrific discussion about Indian creativity this week, (where Vikram Seth was just one of the panellists), Amartya Sen spoke of how economists had spent far too long
"engaged in really silly fighting about how much mathematics to use in economics - it depends on how useful it is and sometimes it's frightfully useful - and other times it's a complete distraction.
Remember that when you're next asked about marketing ROI. And if your finance director doesn't know who Amartya Sen is, tell him or her that he's a Nobel laureate.