Dr. Curmudgeon has a post here where she mentions the issue of plagiarizing one's own work. In her case she's working on a book that is essentially an updated version of her dissertation and she notes how she likes the way she worded things originally but feels a little uncomfortable leaving them given that it's published that way in her dissertation.
I've heard/read people mention this before and I too have this weird feeling of guilt when working on my dissertation manuscript that it's not quite right to leave whole paragraphs or sections in the paper, but at the same time I know I wrote it the first time! And I really like the way I did so.
I'm curious how other people feel about this.
Do you re-write your own writing just to avoid this sort of self-plagiarism?
Would you think it was an issue if you knew someone published something pretty much exactly as they had written about it in a dissertation?
What if it wasn't a dissertation but another journal article/book chapter/book?