It is our ken to think historically, and this week’s revelations regarding Barry Bonds have set us in mind of another player who was, in his day, all the things that we now consider Bonds to be: mean-spirited, bigoted, philandering, physically abusive, a cheat, and the greatest baseball player ever to have donned spikes. That man is Ty Cobb. Ironically, both men seem to have been undone by their obsession with a home-run hitting nemesis whom they felt stole their deserved glory. For Cobb it was Babe Ruth, who reinvigorated the game with the long ball to the diminishment of Cobb’s more scientific attack. Cobb never got over it. Bonds, we have now learned, found his nemesis in Mark McGwire, another Brobdingnagian figure whose power surge lifted the game at a time of need and, in the process, shifted the spotlight from the more gifted Bonds. This, apparently, is what drove Bonds to his rather astounding regimen of doping. Cobb never had recourse to that kind of medical science, fortunately. Maybe the two should have their own separate wing in the Hall of Fame. And maybe it should be rated R.