The best knowledge of all knowledge

People are sent in the world to do. Hypothetically we may find that the whole life long they have to do some certain things those they are assigned from heaven. For doing things they are given some knowledge since they are born. Some people are knowledgeable to design formats and shapes. Some are very good in calculation. Some can build anything in logical way. Each and every people are knowledgeable in some ways. One day I asked to wise man “What is the best knowledge in this world?” It was a mid day of summer by the side of river. Wise man was fishing and smoking under his long corniced cowboy hat. He looked at me, the sight of his deep set eyes stuck at me as if someone threw me a cold stone on my face. I did not show a reaction of it and asking for answer of my question. After few seconds he looked again at river and said” General knowledge or the common sense is the best knowledge in the world. Those who have it can learn and apply anything in few minutes even without reading or studying”. I was not sure about it but felt he was true.