Ralph Steadman

I think the computer is a hindrance to good writing because it is so tempting to leave what you've written. If you use a typewriter, you must retype if you make a mistake, and thus, you must re-examine every word.

And I think that still is true of this business - which is basically research and development - that you probably spend more time in planning and training and designing for things to go wrong, and how you cope with them, than you do for things to go right.