"Tickets on this line," said the driver, "whether single or return, can be purchased by coinage from no terrene mint. And a chronometer, though it had solaced the vigils of Charlemagne, or measured the slumbers of Laura, can acquire by no mutation the double-cake that charms the fangless Cerberus of Heaven!" So saying, he handed in the necessary ticket, and, while the boy said "Thank you," continued: "Titular pretensions, I know it well, are vanity. Yet they merit no censure when uttered on a laughing lip, and in an homonymous world are in some sort useful, since they do serve to distinguish one Jack from his fellow. Remember me, therefore, as Sir Thomas Browne." "Are you a Sir? Oh, sorry!" He had heard of these gentlemen drivers. "It _is_ good of you about the ticket. But if you go on at this rate, however does your bus pay?" "It does not pay. It was not intended to pay. Many are the faults of my equipage; it is compounded too curiously of foreign woods; its cushions tickle erudition rather than promote repose; and my horses are nourished not on the evergreen pastures of the moment, but on the dried bents and clovers of Latinity. But that it pays!--that error at all events was never intended and never attained." "Sorry again," said the boy rather hopelessly. Sir Thomas looked sad, fearing that, even for a moment, he had been the cause of sadness. He invited the boy to come up and sit beside him on the box, and together they journeyed on through the fog, which was now changing from yellow to white. There were no houses by the road; so it must be either Putney Heath or Wimbledon Common. "Have you been a driver always?" "I was a physician once." "But why did you stop? Weren't you good?" "As a healer of bodies I had scant success, and several score of my patients preceded me. But as a healer of the spirit I have succeeded beyond my hopes and my deserts. For though my draughts were not better nor subtler than those of other men, yet, by reason of the cunning goblets wherein I offered them, the queasy soul was ofttimes tempted to sip and be refreshed." "The queasy soul," he murmured; "if the sun sets with trees in front of it, and you suddenly come strange all over, is that a queasy soul?" "Have you felt that?" "Why yes."