I heard a philosopher say that no one has ever made a confession of his own folly except he who begins speaking, whilst another has not yet finished his talk. <br /> <br /> Words have a head, O shrewd man, and a tail. <br /> Do not insert thy words between words of others. <br /> The possessor of deliberation, intelligence and shrewdness <br /> Does not say a word till he sees silence.<br /><br />Saadi Shirazi<br /><br />http://www.poemhunter.com/poem/ch-04-on-the-advantages-of-silence-story-07/