I think the first step is to understand that forgiveness does not exonerate the perpetrator. Forgiveness liberates the victim. It's a gift you give yourself.
It was actually a very nice little book done by a gift book company. They illustrated it with pictures from 1920s football, before there were face guards.
In short, is not liberty the freedom of every person to make full use of his faculties, so long as he does not harm other persons while doing so?