In the Book of Proverbs it says 'He that hath knowledge, spareth his words'. 'Whoso keepeth his mouth and his tongue keepeth his soul from troubles'. A lot of folks think they make a big impression when they run off at the mouth. Well, they make an impression alright, but not the kind they'd hoped for! If you think before you speak, you'll never have to be sorry for what you've said, and wish you could take the words back...