"For a long time I believed the rock and roll mythology of acquiring experience without responsibility. I chose to deal with being in the band in a ver single minded way and I developed a lifestyle that I thought added up to what I was. I don't want to go back there again, I'm comfortable with this."
- Adam Clayton, looking back on the eighties/start nineties
U2 had planned to release the material for No Line On The Horizon as two extended plays, titled Daylight and Darkness, but during sessions in London in 2008 decided to compile the best songs onto one album.