Jim Tinsley, The Project Gutenberg FAQ 2002
“ Modern word processors commonly offer lots of typical typing support features—"Smart Quotes", "Auto Correct", automatically capitalizing the first word in each sentence, anything like that. By all means, leave on any informative highlighting of misspelled words or other errors that it offers, but switch off any feature that changes what you type without asking you. Older books contain text that doesn't sit comfortably with modern rules, and we don't want your word processor deciding what Chaucer really wrote! ”
