Down Pens is a short story by Saki. You can read it online here. It begins,
"Have you written to thank the Froplinsons for what they sent us?" asked Egbert.
"No," said Janetta, with a note of tired defiance in her voice; "I've written eleven letters to-day expressing surprise and gratitude for sundry unmerited gifts, but I haven't written to the Froplinsons."
"Some one will have to write to them," said Egbert.
"I don't dispute the necessity, but I don't think the some one should be me," said Janetta. "I wouldn't mind writing a letter of angry recrimination or heartless satire to some suitable recipient; in fact, I should rather enjoy it, but I've come to the end of my capacity for expressing servile amiability. Eleven letters to-day and nine yesterday, all couched in the same strain of ecstatic thankfulness: really, you can't expect me to sit down to another. There is such a thing as writing oneself out."
"I've written nearly as many," said Egbert, "and I've had my usual business correspondence to get through, too. Besides, I don't know what it was that the Froplinsons sent us."
"A William the Conqueror calendar," said Janetta, "with a quotation of one of his great thoughts for every day in the year."
"Impossible," said Egbert; "he didn't have three hundred and sixty-five thoughts in the whole of his life, or, if he did, he kept them to himself. He was a man of action, not of introspection."
"Well, it was William Wordsworth, then," said Janetta; "I know William came into it somewhere."