If you go outside, you can find a thousand stones on the ground. They are lying around everywhere. You can just pick any one of them up anytime and put it right into your pocket, or throw it back into the ground. Or do whatever you like with it. It has no value, so no one cares. But when a stone is a precious jewel, it is surrounded and protected. You’ll have to work very hard to earn it and even harder to keep it for yourself.