So the point of my keeping a notebook has never been, nor is it now, to have an accurate factual record of what I have been doing or thinking. That would be a different impulse entirely, an instinct for reality which I sometimes envy but do not possess. At no point have I ever been able successfully to keep a diary; my approach to daily life ranges from the grossly negligent to the merely absent, and on those few occasions when I have tried dutifully to record a day's events, boredom has so overcome me that the results are mysterious at best … How it felt to me: that is getting closer to the truth about a notebook ... We are not talking here about the kind of notebook that is patently for public consumption, a structural conceit for binding together a series of graceful pensees; we are talking about something private, about bits of the mind's string too short to use, an indiscriminate and erratic assemblage with meaning only for its maker.
- Joan Didion, 'On Keeping a Notebook'