It seems the minds of these people are so taken up with intense speculations, that they neither can speak, nor attend to the discourses of others, without being roused by some external taction upon the organs of speech and hearing; for which reason, those persons who are able to afford it always keep a flapper (the original is climenole) in their family, as one of their domestics; nor ever walk abroad, or make visits, without him.
Jonathan Swift. Gulliver's Travels Into Several Remote Regions of the World (1726)
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The superstition that maladies can be cured by royal taction is dead, but like many a departed conviction it has left a monument of custom to keep its memory green.