I understand that. But I didn't understand your response.
To dogunwo's statement:
In context, dogunwo is saying just because Marv Lewis has been given chance after chance doesn't mean that black coaches aren't given as long a leash as white coaches.
You then say truth is perpetual so if it is proven once, it never was truth. But that's not necessarily, er, true.
Maybe Marvin Lewis is the exception to the rule, but that doesn't mean that a rule doesn't exist. And a rule is generally based on principles of truth.
Now if you're talking about empirical, scientific truth, you would be correct. But when you're talking about human behavior, no, you're not correct. And if I've followed the discussion correctly, we're talking about the latter.