Where can this quote be found in Rambam: "Do not consider it proof just because it is written in books, for a liar who will deceive with his tongue will not hesitate to do the same with his pen."?
Where can this quote be found in Rambam: "Do not consider it proof just because it is written in books, for a liar who will deceive with his tongue will not hesitate to do the same with his pen."?