One must posses sufficient knowledge about his respective field. A little knowledge is a dangerous thing. A doctor who does not have enough knowledge about medicines could lead patients to death by giving them the wrong medicine. A technician who does not have enough knowledge about the repair of electrical equipments could damage them further and spoil functioning of the machine. The mother who does not know how to take care of the child may land up making the life of the child miserable through her wrong decisions. For instance, she may give two tablets instead of one to the child and lead him to death bed.
The person who has little knowledge should not take independent decisions. He must consult a knowledgeful person before taking any decision. A less knowledgeful person takes irrational decisions and creates miseries in the lives of everybody. Therefore, people must not rely on the decisions of the persons with less knowledge because, ‘Little knowledge is a dangerous thing’.