Fill in the Blanks 216-testOnline version 216-test by Farhad Key 1 contributory which kinds is come sources tiresome Omniscience foible value intelligence connexion may be a of men , but it is not so of books . Knowledge , as Johnson said , is of two , you may know a thing yourself , and you may know where to find it . Now the amount which you may actually know yourself must , at its best , be limited , but what you may know of the of information may , with proper training , become almost boundless . And here come the and use of reference books - - the working of one book in with another ? and applying your own to both . By this means we get as near to that omniscient volume which tells everything as ever we shall get , and although the single volume or work which tells everything does not exist , there is a vast number of reference books in existence , a knowledge and proper use of is essential to every intelligent person . Necessary as I believe reference books to be , they can easily be made to be to idleness , and too mechanical a use should not be made of them . Very admirable reference books to us from America , where great industry shown , and funds for publishing them never seem to be short . The French , too , are excellent at reference books , but the inferior way in which they are printed makes them to refer to .