Although he had lived a generation before them, what Lewis Carroll had in common with C.S. (Clive Staples) Lewis, author of The Chronicles of Narnia, and J.R.R. (John Ronald Reuel) Tolkien, author of The Lord of the Rings, is that all three writers were members of the faculty at Oxford University.
J. R. R. Tolkien and C.S. Lewis were contemporaries and close friends and both were professors of English Language and Literature at Oxford. Both were also great admirers of Lewis Carroll, who had died around the time they were both born. Carroll was an accomplished mathematician, who held a Lectureship in Mathematics at Oxford University for over twenty five years, during which time Carroll wrote a dozen books on a wide range of mathematical disciplines, from Geometry to Matrix Algebra.
We called him Tortoise because he taught us.
No good fish goes anywhere without a porpoise.
It’s no use going back to yesterday. I was a different person then.