Imperfect knowledge of any matter is undesirable. An individual who possesses a little knowledge more often cries for the moon and attempts to do what is apparently beyond his capacity. He is more or less a jack of all trades and master of none. While trying to perform miracles, he comes across utter failure and curses his luck for his discomfiture. The example of a mediocre doctor who tries his hand at a complicated operation, during the course of which the patient dies due to his little learning, will fully illustrate the truth of this statement. A radio or an automobile mechanic having only an elementary knowledge of his work may spoil the machinery while using or repairing it. Similarly, man with only a very meager knowledge of law may involve himself or another person in serious trouble as a result of his ignorance.
