Rodney Harrison will not return to the Patriots' lineup this season, and perhaps, never again. With three torn ligaments in his left knee, Harrison is now contemplating if the game is even worth returning to. ``I know I can come back from this. It's just a matter of how hard and how bad I want to do it,'' Harrison was quoted as saying in a story published yesterday. ``Football is not my life, it's a part of my life. It's what I do, it's not who I am.'' ``Physically, I'm not doing well. But spiritually, I'm doing fine. That's what keeps me going,'' said Harrison, who played nine seasons in San Diego before joining the Patriots. ``If you can accept the interceptions and the playoff wins and the lifting of the Lombardi Trophy, you have to be able to accept the other side of it. ``Time heals all wounds,'' he went on. ``I'll be back. I don't know if that means on the football field, but as long as I can run after Little Man (Harrison's son), that's what's important.''