“I…regret…what I did. It was wrong. Very wrong. But regret is meaningless.”

On reactions to his spray painting the fountain at the free concert he gave in San Francisco, in a Press conference (November 1987) http://www.u2source.com/2007/08/19/bono-press-conference-regarding-graffiti/
Context: It is fair to say that we overreacted a bit. … Its not really worth defending my action, I did it in the spirit of the concert, and I thought I did it in the spirit of the artist's work, and he agreed — but, in fact he didn't own his work anymore, as most artists are prone to, he'd sold it, and the City of San Francisco owned it, and they didn't like what I did at all. … Its a really wild thing, you know, you're in Rock n Roll band — you know, I happen to sell millions of records — people therefore think that makes you a responsible citizen — this is not true. … I think this is one of the more mild actions of tour-madness. … It's the music that is magical with U2. … I don't mind being arrested for putting on a free concert, but I don't want to be arrested for being a vandal. I am a vandal and I do regret what I did. I really do regret it. It was dumb.

to conservative Alaskan columnist Paul Jenkins, in response to a comparison of emails showing her actions in conducting campaign business on City time to state Republican leader Randy Ruedrich conducting party business on state time, , quoted in [2008-09-14, Once Elected, Palin Hired Friends and Lashed Foes, Jo Becker, Peter S. Goodman and Michael Powell, The New York Times, http://www.nytimes.com/2008/09/14/us/politics/14palin.html]
2014

Apology letter addressed to Harvard University community, posted on his website — reported in Reuters (January 26, 2005) "Summers Regrets", The Australian, p. 032.
2000s

On Early Years
"My neighborhood, Coconut Grove, we always played in the streets. It was corner against corner. We all had football teams. Different neighborhoods. My first year playing Pop Warner football, my mom had to change my birth certificate because I was too young. I was 5, I think, and you were supposed to be 6. My first time playing running back in a real game, I had eight touchdowns. I always loved football. For so long, I played against the older kids in the neighborhood. They had me really competing. I’d play corner, receiver, running back. I remember one time one of the older kids looked at me when I was playing corner, like it was a threat, and said: ‘You better not get beat.’"
"When I got to Coral Gables High, it felt like I was on a different level. You play Pop Warner, and you’re good, and all the top high schools try to get you. So I felt like I was pretty good. I got over 1,000 yards my sophomore year, but my coach got fired. At that time I wasn’t really working hard. I was good, but I didn’t lift weights. This new coach, Joe Montoya, basically called me out in our first team meeting. He didn’t give a s--- what I done to that point. He said, ‘I don’t care what you did before I got here.’ He told the guys things were gonna be different, and they better work hard, or they could get out right now. I felt like he called me out. I was about to leave. But then I met with him. He said, ‘Listen to what I say, and you’ll be a D-1 player.’"
"Good lesson. I listened to him. I got stronger and stronger, and I got faster. I was the first one at practice. I had to be first in every sprint. He had me programmed. I got better. My senior year, I rushed for 1,000 yards in my first four games. I wanted to play major-college football. Joe Montoya was really important. When I go back to Miami now, I call him. We have cookouts."

Source: The Eden Express: A Memoir of Insanity

Source: Black Heart

Source: A Dictionary of Thoughts, 1891, p. 483.