I'm a composer, and therefore I know when I've written a good tune. When you've written a good song is when you know that the lyric is completely coalesced with the song.

I guess a good song is a good song is a good song, ya know.

A good song gathers the years in. It's why you can sing it with such conviction 40 years after it's been written.

You can't just sort of come with, say, 'Yesterday,' or 'A Hard Day's Night,' and it be in the wrong place in the wrong show, and expect the song to work theatrically.

The world is a song, but we do not know whether it is a good song because we have nothing to compare it with.

The moment the doctor said he wanted to do a biopsy, in my heart I thought I'd probably got it. But I also know a lot of people who have also had prostate cancer, so I had a reasonably good idea what to expect.