You Can't Tell Or Show Everything

You can’t tell or show everything within the compass of a book. If you try to tell or show everything, your reader will die of boredom before the end of the first page. You must, therefore, ask yourself what is the core of the matter you wish to communicate to your reader? Having decided on the core of the matter, all that you tell him must relate to it and illustrate it more and more vividly.
MORRIS L. WEST