Cheers for that. A bunch of it went over my head as I dunno the poets he's referencing, but it was a decent read. The stuff re: making a "clean break" and not repeating oneself probably made the strongest impression; being surprised by your own words and his knowing that the book on molecular forces would be of significance jumped out at me too. I've definitely experienced the former, writing a piece of music or whatever then going back to it and wondering where it came from.