For those wondering about the source of the praise of tea by C.S. Lewis:
"You can't get a cup of tea large enough or a book long enough to suit me," appeared in the Preface to Of This and Other Worlds (first published in 1966).
The Preface was written by Walter McGehee Hooper (March 27, 1931-Dec. 7, 2020). The American writer had served as secretary to British writer and Anglican lay theologian Clive Staples "C.S." Lewis (Nov. 29, 1898-Nov. 22, 1963) and as literary advisor of Lewis's estate.
The praise of tea opened the Preface in the 2000 edition of Of This and Other Worlds (Internet Archive @
https://archive.org/details/ofthisotherworld0000lewi/page/1/mode/1up).
The context for Lewis's observation was Hooper's pouring tea into "a very large Cornish-ware cup" while Lewis was reading Bleak House by English novelist and social critic Charles Dickens (Feb. 7, 1812-June 9, 1870).
Dickens first published his multi-character satire of the legal system as a 20-episode serial from March 12, 1852, to Sep. 12, 1853, and then released the story as a complete novel in 1853.