That’s why the original rolling stones were not boulders crashing down a hillside. In fact, the sort of rolling stone that gathers no moss is helpfully pinned down in a dictionary of 1611 as a gardening implement used to make your lawn nice and flat. The solicitous gardener who rolls his lawn every weekend will find that his rolling stone gathers no moss. Which means that Mick Jagger, Bob Dylan, Muddy Waters et al are all referring to diligent gardening. Moreover, one of the most successful bands of the twentieth century belongs in the garden shed.
