Quote from Stephen Sondheim - "Sondheim on Sondheim"

From Broadway's Sondheim on Sondheim:

My first serious relationship occurred when I was 60 years old and I fell in love. I think that it did not happen until then because I was not open for it. I wasn't ready for it. I was brought up as an only child. I enjoyed being an only child. I enjoyed being alone. I still enjoy often being alone. But I think that I had gotten in the habit of it. And when I met somebody, that habit got broken.