Δαφνη Ευτυχια Αρθουρος

"When you get it right mighty beasts float up into the sky. When you get it wrong people die." -- Roger Bacon

[I found this attributed, "Roger Bacon, c. 1384", but the Roger Bacon I found in Wikipedia (aka Doctor Mirabilis) was from about a century earlier; a car blog used the same quote and attributed it to "Roger Bacon, about 750 years ago". I found a book by Bacon at Google Books, but since just about the only Latin I know is, "Ita, nos habemos non ullas bananas," trying to see whether the quote appears in any of Google's sample pages seemed pointless. Can any of y'all confirm or refute that the Roger Bacon who said that is the same Roger Bacon who was a master at Oxford in the 13th Century and got into a bit of trouble with the Catholic church? Anyhow, whoever said it and when, it seemed appropriate for this date.]