"I became better at reading dogs than reading defenses. That's just so sad to say right now, because I put more time and effort into trying to master that pursuit than my own profession," Vick writes in the book, Finally Free.
In an interview with USA Today, Vick said he has come to terms with the permanent mark on his past.
"I've made peace with it, because I have no control over it," the former Falcons star told the paper. "But at the same time, I think I made a lot of changes for the better, and I think in my quest to be an advocate against dogfighting and working with the Humane Society, I've helped more animals than I've hurt."
In another portion of his interview, Vick said he wanted to give hope to others who have made mistakes. He also said he wanted fans to get to know more about him than they might in a brief interaction.
"I run into so many people who feel like they don't have any hope after they make a mistake or after they can't overcome certain obstacles in their life. . . . I just want them to know that there's several roadblocks you're going to run into," he said, later adding, "Even though you may fall, you have to get up."
In another excerpt, Vick said he had hoped to lie his way out of trouble with the NFL - though it ultimately led to a harsher penalty from the league.
The autobiography is due out Sept. 4, with a forward by Tony Dungy.
Contact Jonathan Tamari at firstname.lastname@example.org.