If knights errant were to be believed, not all castles were desirable
places to seek hospitality in. As a matter of fact, knights errant were
_not_ persons to be believed—that is, measured by modern standards of
veracity; yet, measured by the standards of their own time, and scaled
accordingly, you got the truth. It was very simple: you discounted a
statement ninety-seven per cent.; the rest was fact.