There is seven-eights of it under water for every part that shows. Anything you know you can eliminate and it only strengthens your iceberg. It is the part that doesn't show. If a writer omits something because he does not know it then there is a hole in the story.
An aggressive war is the great crime against everything good in the world. A defensive war, which must necessarily turn to aggressive at the earliest moment, is the necessary great counter-crime. But never think that war, no matter how necessary, nor how justified, is not a crime. Ask the infantry and ask the dead.
Now a writer can make himself a nice career while he is alive by espousing a political cause, working for it, making a profession of believing in it, and if it wins he will be very well placed. All politics is a matter of working hard without reward, or with a living wage for a time, in the hope of booty later. A man can be a Fascist or a Communist and if his outfit gets in he can get to be an ambassador or have a million copies of his books printed by the Government or any of the other rewards the boys dream about.
In going where you have to go, and doing what you have to do, and seeing what you have to see, you'll dull and blunt the instrument you write with. But I would rather have it bent and dull and know I had to put it to the grindstone again and hammer it into shape and put a whetstone to it, and know that I had something to write about, than to have it bright and shining and nothing to say, or smooth and well-oiled in the closet, but unused.