The continual cracking of your feet on the road makes a certain quantity of road come up into you. When a man dies they say he returns to clay but too much walking fills you up with clay far sooner (or buries bits of you along the road) and brings your death half-way to meet you. It is not easy to know what is the best way to move yourself from one place to another.

The Complete Novels (ed. Everyman's Library, 2007)