"Was there any adrenaline rush? Was it the sense of competition? What was it that gripped you about what you engaged in with the dogfighting?" Brown asked.
"Regardless of what it was, don't even matter," Vick replied.
"Do you know what it was?" Brown asked.
"I know why. And regardless of what it was - and why I was driven, you know, by what was going on, whether it was because of the competition or whatever it may have been, it was wrong," Vick said.
"Were any of those reasons, though? The competition? The adrenaline?" Brown asked.
"Yeah," Vick acknowledged.
Asked if he understands why people are outraged, Vick said, "I understand why. And I'm going to say it again. Sickens me to my stomach. And it was same thing that I'm feeling right now."
He told Brown that feeling right now is "pure disgust."
"When did you arrive at that feeling of disgust, Michael? When did the light go on?" Brown asked.
"When I was in prison. I was disgusted, you know, because of what I let happen to those animals," Vick said. "I could've put a stop to it. I could've walked away from it. I could've shut the whole operation down."
"But you didn't. Why not?" Brown asked.
"But I didn't," Vick acknowledged.
Asked what kept him going, Vick told Brown, "Not being able to say, or tell certain people around me that, 'Look, we can't do this anymore. I'm concerned about my career. I'm concerned about my family.'"
"So for the cynics who will say, 'You know what? I don't know. Michael Vick might be more concerned about the fact that his career was hurt than dogs were hurt,'" Brown asked.
"I mean, football don't even matter," Vick said. "I deserve to lose that because of what I was doing. I deserve to lose the $130 million and, you know, on the flip side, you know, killing dogs or doing the wrong things, why would, you know, he don't deserve it."
Brown and 60 Minutes met Michael Vick in Virginia - he wasn't allowed to cross state lines without permission from his probation officer. He was accompanied by two men, former NFL coach Tony Dungy, who has been asked by NFL Commissioner Roger Goodell to mentor Vick, and someone you might never expect: Wayne Pacelle, president of the Humane Society of the United States.