Paul McCartney (in 1963) - "If we write one song, then we can get going after that and get more ideas. We wrote 'I'll Get You,' which is the B-side, first. And then 'She Loves You' came after that. You know-- We got ideas from that. Then we recorded it."
John Lennon (in 1980) - "That was Paul and me trying to write a song... and it didn't work out."
Paul McCartney (in 1994) - "It's got an interesting chord in it-- 'It's not easy/ To pre-TEND...' That was nicked from a song called 'All My Trials' which is on an album I had by Joan Baez."