Where is the wisdom we have lost in knowledge? Knowledge gives us information. Wisdom gives us light on the way. Knowledge is skill. Wisdom is a quality. Knowledge can be learned. Wisdom can only be distilled from those places in life where knowledge is not enough to really explain what was happening to us, or information failed to resolve what was happening to the other.
The discipline of silence doesn't mean just taking a short vacation from the spoken word. It also means giving complete relaxation to the muscles, the tissues, the tongue itself. A modern writer once said: "Knowledge has never been known to enter the head via an open mouth." It is when you become completely silent that you are able to absorb knowledge. God speaks in silence. The discipline of silence is essential on the path.