Knuth quote IV

When quoting Lamport about writing Greek letters being as easy as writing “... as easy as $\pi$” in The TeXbook, Knuth cites the book as LaTeX Document Preparation System. He comments,

Note: the final manual has a slightly different wording on p43.
It's now called "LaTeX: A Document Preparation System" (1986)
But I decided to cite the original, partly because I have
no smallcaps sans-serif `A' to match the new LaTeX logo!