Feyerabend 
wrote a "letter to the reader" that was "almost certainly intended as the foreword to the book" *Conquest of Abundance*. Two key paragraphs are:
> In a few pages you will find a story written in a style you may be familiar with. There are facts and generalisations therefrom, there are arguments – and there are lots of footnotes. In other words, you will find a (perhaps not very outstanding) example of a scholarly essay. Let me therefore warn you that it is not my intention to inform, or to establish some truth. What I want to do is to change your attitude. I want you to sense chaos where at first you noticed an orderly arrangement of well-behaved things and processes. [...]
> [...]
>
> This, my dear reader, is the warning I want you to remember from time to time and especially when the story seems to become so definite that it almost turns into a clearly thought-out and precisely structured point of view.
From Ian Hacking's review of *Conquest*: ‘Screw you, I’m going home ’