Knowledge is information about the various things of the world derived from the study of books, from the observation of men and manners, and from the careful watching of the different phenomenon of nature. Knowledge is not the same as learning for all learning is knowledge no doubt, but all knowledge is not learning. Knowledge obtained from experiences and quite independent of learning, which is derived from study in schools and colleges. No amount of wealth or influence can procure knowledge for anyone. It is not a thing to be bought in the market. It has to be gained by diligence and anyone who wills may have it. Like wealth or beauty, it cannot be destroyed by time; it will last as long as mankind will exist. Knowledge has invested man with the mastery with nature. The different elements in nature have been brought under subjection and made to serve mankind. Scientific inventions and discoveries which have added so much to the civilization of the world, are noting but the results of knowledge. The power which knowledge brings with it, is infinitely superior to that which springs from wealth or physical strength. A wealthy man may be honoured and respected, but this honour and respect are limited. A man of knowledge, on the other hand, commands universal reverence.