One of the most difficult tasks is to rigorously delete what has no function within an argument – “kill your darlings.”38 This becomes much easier when you move the questionable passages into another document and tell yourself you might use them later. For every document I write, I have another called “xy-rest.doc,” and every single time I cut something, I copy it into the other document, convincing myself that I will later look through it and add it back where it might fit.