"Behind every door on every ordinary street, in every hut in every ordinary village in this middling planet of a trivial star, such riches are to be found. The strange journeys we undertake on our earthly pilgrimage, the joy and suffering we taste or confer, the chance events that leave us together or apart, what a complex trace they leave: so personal as to be almost incommunicable, so fugitive as to be almost irrecoverable."