There is the Buddhist story of a boy who turned a dead mouse into a fortune. He built his riches step-by-step, by imaginatively reusing every bit of trash he found. He successfully traded the rodent for honey, later dried twigs for pots and finally bundles of fresh grass for jewels. The last was bought by wealthy merchants looking to feed their tired horses. It is a long story but the moral is simple — everything can be mined for gold, if you can spot the vein.