John Lennon (in 1980) - "That's Paul. Apparently he was under strain at that period."
Paul McCartney (in 1994) - "I'm generally quite upbeat, but at certain times things get to me so much that I just can't be upbeat anymore and that (the tensions leading to the break-up) was one of those times. 'Carry that weight a long time'-- like forever! That's what I meant... in this heaviness there was no place to be. It was serious, paranoid heaviness and it was just very uncomfortable."