What does speech is silver and silence is gold means?

There is greater value in silence than there is in speaking. If you listen, it is an investment that is to be treated like gold and not parted with until you need to cash it in. Continual talk and giving away valuable knowledge while others are also trading similar thoughts is like dealing with the silver circulated as money. It becomes a commodity with low value as there is so much of it going on. Everyone wants their say and nobody is listening. The one who is sitting to one side and who is banking the knowledge knows the true value of silence. When eventually someone turns to him/her and asks their opinion, that person will probably say ' come and see me sometime and we will talk turkey. In other Words they will trade what they know for something they may think that person may know. That is leverage and it is to be considered high value. Watch for those who remain silent and you will find gold. Many a high flyer thinks that the person who has nothing to say is lacking and therefore uninteresting and without value. The high flyer is happy dealing in silver and trading with others that deal with silver. The listener deals in gold and is very selective with the people they deal with.